812577111084 has 18 divisors (see below), whose sum is σ = 2054014364220. Its totient is φ = 270859037016.

The previous prime is 812577111019. The next prime is 812577111097. The reversal of 812577111084 is 480111775218.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×812577111084³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11285793174 + ... + 11285793245.

Almost surely, 2^812577111084 is an apocalyptic number.

It is an amenable number.

812577111084 is an abundant number, since it is smaller than the sum of its proper divisors (1241437253136).

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

812577111084 is a wasteful number, since it uses less digits than its factorization.

812577111084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22571586429 (or 22571586424 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 45.

The spelling of 812577111084 in words is "eight hundred twelve billion, five hundred seventy-seven million, one hundred eleven thousand, eighty-four".