7700000000 has 324 divisors, whose sum is σ = 23953112736. Its totient is φ = 2400000000.

The previous prime is 7699999999. The next prime is 7700000003. The reversal of 7700000000 is 77.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7700000003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 699999995 + ... + 700000005.

Almost surely, 2^7700000000 is an apocalyptic number.

7700000000 is a gapful number since it is divisible by the number (70) 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 7700000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11976556368).

7700000000 is an abundant number, since it is smaller than the sum of its proper divisors (16253112736).

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

7700000000 is an frugal number, since it uses more digits than its factorization.

7700000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 49, while the sum is 14.

The square root of 7700000000 is about 87749.6438739212. The cubic root of 7700000000 is about 1974.6808222124.

Adding to 7700000000 its reverse (77), we get a palindrome (7700000077).

Multiplying 7700000000 by its reverse (77), we get a square (592900000000 = 770000²).

7700000000 divided by its reverse (77) gives a 8-th power (100000000 = 10⁸).

It can be divided in two parts, 7 and 700000000, that multiplied together give a square (4900000000 = 70000²).

The spelling of 7700000000 in words is "seven billion, seven hundred million", and thus it is an aban number.