8012500000 has 108 divisors (see below), whose sum is σ = 19749013326. Its totient is φ = 3200000000.

The previous prime is 8012499997. The next prime is 8012500003. The reversal of 8012500000 is 52108.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8012499997) and next prime (8012500003).

It can be written as a sum of positive squares in 9 ways, for example, as 7984494736 + 28005264 = 89356^2 + 5292^2 .

It is a sliding number, since 8012500000 = 12500000 + 8000000000 and 1/12500000 + 1/8000000000 = 0.00000008012500000.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012500003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12499680 + ... + 12500320.

Almost surely, 2^8012500000 is an apocalyptic number.

8012500000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8012500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9874506663).

8012500000 is an abundant number, since it is smaller than the sum of its proper divisors (11736513326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8012500000 is an frugal number, since it uses more digits than its factorization.

8012500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 8012500000 is about 89512.5689498408. The cubic root of 8012500000 is about 2001.0411246024.

Adding to 8012500000 its reverse (52108), we get a palindrome (8012552108).

It can be divided in two parts, 80 and 12500000, that multiplied together give a 9-th power (1000000000 = 10⁹).

The spelling of 8012500000 in words is "eight billion, twelve million, five hundred thousand".