812792113605 has 32 divisors (see below), whose sum is σ = 1521014486400. Its totient is φ = 410673908736.

The previous prime is 812792113591. The next prime is 812792113631. The reversal of 812792113605 is 506311297218.

812792113605 is a `hidden beast` number, since 8 + 1 + 2 + 7 + 9 + 21 + 13 + 605 = 666.

It is not a de Polignac number, because 812792113605 - 2⁷ = 812792113477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158436444 + ... + 158441573.

It is an arithmetic number, because the mean of its divisors is an integer number (47531702700).

Almost surely, 2^812792113605 is an apocalyptic number.

It is an amenable number.

812792113605 is a deficient number, since it is larger than the sum of its proper divisors (708222372795).

812792113605 is a wasteful number, since it uses less digits than its factorization.

812792113605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316878050 (or 316878044 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 812792113605 in words is "eight hundred twelve billion, seven hundred ninety-two million, one hundred thirteen thousand, six hundred five".