812690609077116 has 144 divisors (see below), whose sum is σ = 2568185536250880. Its totient is φ = 210513296684160.

The previous prime is 812690609077079. The next prime is 812690609077117. The reversal of 812690609077116 is 611770906096218.

812690609077116 is a `hidden beast` number, since 8 + 1 + 2 + 6 + 9 + 0 + 609 + 0 + 7 + 7 + 1 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812690609077117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 398408331 + ... + 400442978.

It is an arithmetic number, because the mean of its divisors is an integer number (17834621779520).

Almost surely, 2^{812690609077116} is an apocalyptic number.

It is an amenable number.

812690609077116 is an abundant number, since it is smaller than the sum of its proper divisors (1755494927173764).

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

812690609077116 is a wasteful number, since it uses less digits than its factorization.

812690609077116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798851704 (or 798851699 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 63.

The spelling of 812690609077116 in words is "eight hundred twelve trillion, six hundred ninety billion, six hundred nine million, seventy-seven thousand, one hundred sixteen".