785815104956 has 24 divisors (see below), whose sum is σ = 1598268013440. Its totient is φ = 331069801392.

The previous prime is 785815104947. The next prime is 785815104989. The reversal of 785815104956 is 659401518587.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a junction number, because it is equal to n+sod(n) for n = 785815104895 and 785815104904.

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, 237835850 + ... + 237839153.

It is an arithmetic number, because the mean of its divisors is an integer number (66594500560).

Almost surely, 2^785815104956 is an apocalyptic number.

It is an amenable number.

785815104956 is an abundant number, since it is smaller than the sum of its proper divisors (812452908484).

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

785815104956 is a wasteful number, since it uses less digits than its factorization.

785815104956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475675073 (or 475675071 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 59.

The spelling of 785815104956 in words is "seven hundred eighty-five billion, eight hundred fifteen million, one hundred four thousand, nine hundred fifty-six".