7707939680 has 48 divisors (see below), whose sum is σ = 20811440160. Its totient is φ = 2642721792.

The previous prime is 7707939671. The next prime is 7707939697. The reversal of 7707939680 is 869397077.

It is a super-2 number, since 2×7707939680² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3439925 + ... + 3442164.

It is an arithmetic number, because the mean of its divisors is an integer number (433571670).

Almost surely, 2^7707939680 is an apocalyptic number.

7707939680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7707939680 is an abundant number, since it is smaller than the sum of its proper divisors (13103500480).

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

7707939680 is a wasteful number, since it uses less digits than its factorization.

7707939680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882111 (or 6882103 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 7707939680 is about 87794.8727432303. The cubic root of 7707939680 is about 1975.3593048154.

The spelling of 7707939680 in words is "seven billion, seven hundred seven million, nine hundred thirty-nine thousand, six hundred eighty".