7800725000 has 48 divisors (see below), whose sum is σ = 18281837700. Its totient is φ = 3120280000.

The previous prime is 7800724979. The next prime is 7800725003. The reversal of 7800725000 is 5270087.

It can be written as a sum of positive squares in 6 ways, for example, as 1274347204 + 6526377796 = 35698^2 + 80786^2 .

It is not an unprimeable number, because it can be changed into a prime (7800725003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131015 + ... + 181014.

Almost surely, 2^7800725000 is an apocalyptic number.

It is an amenable number.

7800725000 is an abundant number, since it is smaller than the sum of its proper divisors (10481112700).

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

7800725000 is an equidigital number, since it uses as much as digits as its factorization.

7800725000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312060 (or 312036 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 7800725000 is about 88321.7130721546. The cubic root of 7800725000 is about 1983.2539258434.

Adding to 7800725000 its reverse (5270087), we get a palindrome (7805995087).

The spelling of 7800725000 in words is "seven billion, eight hundred million, seven hundred twenty-five thousand".