77855386313000 has 64 divisors (see below), whose sum is σ = 182192963584320. Its totient is φ = 31140212712000.

The previous prime is 77855386312993. The next prime is 77855386313017. The reversal of 77855386313000 is 31368355877.

It is a super-2 number, since 2×77855386313000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13671779 + ... + 18510221.

It is an arithmetic number, because the mean of its divisors is an integer number (2846765056005).

Almost surely, 2^{77855386313000} is an apocalyptic number.

It is an amenable number.

77855386313000 is an abundant number, since it is smaller than the sum of its proper divisors (104337577271320).

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

77855386313000 is a wasteful number, since it uses less digits than its factorization.

77855386313000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854555 (or 4854541 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 77855386313000 in words is "seventy-seven trillion, eight hundred fifty-five billion, three hundred eighty-six million, three hundred thirteen thousand".