813082264656 has 20 divisors (see below), whose sum is σ = 2100462517152. Its totient is φ = 271027421536.

The previous prime is 813082264639. The next prime is 813082264697. The reversal of 813082264656 is 656462280318.

It is a super-2 number, since 2×813082264656² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813082264599 and 813082264608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8469606876 + ... + 8469606971.

Almost surely, 2^813082264656 is an apocalyptic number.

It is an amenable number.

813082264656 is an abundant number, since it is smaller than the sum of its proper divisors (1287380252496).

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

813082264656 is a wasteful number, since it uses less digits than its factorization.

813082264656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16939213858 (or 16939213852 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 813082264656 in words is "eight hundred thirteen billion, eighty-two million, two hundred sixty-four thousand, six hundred fifty-six".