7777112640 has 112 divisors (see below), whose sum is σ = 26937126720. Its totient is φ = 1885358080.

The previous prime is 7777112639. The next prime is 7777112641. The reversal of 7777112640 is 462117777.

It is an interprime number because it is at equal distance from previous prime (7777112639) and next prime (7777112641).

It is a junction number, because it is equal to n+sod(n) for n = 7777112592 and 7777112601.

It is not an unprimeable number, because it can be changed into a prime (7777112641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357675 + ... + 378794.

It is an arithmetic number, because the mean of its divisors is an integer number (240510060).

Almost surely, 2^7777112640 is an apocalyptic number.

It is an amenable number.

7777112640 is an abundant number, since it is smaller than the sum of its proper divisors (19160014080).

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

7777112640 is a wasteful number, since it uses less digits than its factorization.

7777112640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736500 (or 736490 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 7777112640 is about 88187.9393114501. The cubic root of 7777112640 is about 1981.2508370200.

The spelling of 7777112640 in words is "seven billion, seven hundred seventy-seven million, one hundred twelve thousand, six hundred forty".