813256124916 has 24 divisors (see below), whose sum is σ = 1948884048160. Its totient is φ = 263758743072.

The previous prime is 813256124897. The next prime is 813256124959. The reversal of 813256124916 is 619421652318.

It is a super-2 number, since 2×813256124916² (a number of 25 digits) contains 22 as substring.

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, 915828526 + ... + 915829413.

Almost surely, 2^813256124916 is an apocalyptic number.

It is an amenable number.

813256124916 is an abundant number, since it is smaller than the sum of its proper divisors (1135627923244).

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

813256124916 is a wasteful number, since it uses less digits than its factorization.

813256124916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831657983 (or 1831657981 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The spelling of 813256124916 in words is "eight hundred thirteen billion, two hundred fifty-six million, one hundred twenty-four thousand, nine hundred sixteen".