77509180608 has 56 divisors (see below), whose sum is σ = 205358829312. Its totient is φ = 25800808704.

The previous prime is 77509180601. The next prime is 77509180627. The reversal of 77509180608 is 80608190577.

It is not an unprimeable number, because it can be changed into a prime (77509180601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138060 + ... + 417227.

It is an arithmetic number, because the mean of its divisors is an integer number (3667121952).

Almost surely, 2^77509180608 is an apocalyptic number.

It is an amenable number.

77509180608 is an abundant number, since it is smaller than the sum of its proper divisors (127849648704).

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

77509180608 is a wasteful number, since it uses less digits than its factorization.

77509180608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556029 (or 556019 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 51.

The spelling of 77509180608 in words is "seventy-seven billion, five hundred nine million, one hundred eighty thousand, six hundred eight".