810231694402 has 64 divisors (see below), whose sum is σ = 1460989281024. Its totient is φ = 333182361600.

The previous prime is 810231694399. The next prime is 810231694423. The reversal of 810231694402 is 204496132018.

It is a super-2 number, since 2×810231694402² (a number of 25 digits) contains 22 as substring.

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, 575277 + ... + 1396927.

It is an arithmetic number, because the mean of its divisors is an integer number (22827957516).

Almost surely, 2^810231694402 is an apocalyptic number.

810231694402 is a deficient number, since it is larger than the sum of its proper divisors (650757586622).

810231694402 is a wasteful number, since it uses less digits than its factorization.

810231694402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821803.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 810231694402 in words is "eight hundred ten billion, two hundred thirty-one million, six hundred ninety-four thousand, four hundred two".