77760803617872 has 40 divisors (see below), whose sum is σ = 200994741447744. Its totient is φ = 25905730397184.

The previous prime is 77760803617859. The next prime is 77760803617927. The reversal of 77760803617872 is 27871630806777.

It is a junction number, because it is equal to n+sod(n) for n = 77760803617797 and 77760803617806.

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, 454209633 + ... + 454380800.

Almost surely, 2^{77760803617872} is an apocalyptic number.

It is an amenable number.

77760803617872 is an abundant number, since it is smaller than the sum of its proper divisors (123233937829872).

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

77760803617872 is a wasteful number, since it uses less digits than its factorization.

77760803617872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908592227 (or 908592221 counting only the distinct ones).

The product of its (nonzero) digits is 232339968, while the sum is 69.

The spelling of 77760803617872 in words is "seventy-seven trillion, seven hundred sixty billion, eight hundred three million, six hundred seventeen thousand, eight hundred seventy-two".