813881270132 has 12 divisors (see below), whose sum is σ = 1627762540320. Its totient is φ = 348806258616.

The previous prime is 813881270129. The next prime is 813881270149. The reversal of 813881270132 is 231072188318.

813881270132 is an admirable number.

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, 14533594082 + ... + 14533594137.

It is an arithmetic number, because the mean of its divisors is an integer number (135646878360).

Almost surely, 2^813881270132 is an apocalyptic number.

It is an amenable number.

813881270132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

813881270132 is a wasteful number, since it uses less digits than its factorization.

813881270132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29067188230 (or 29067188228 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 813881270132 in words is "eight hundred thirteen billion, eight hundred eighty-one million, two hundred seventy thousand, one hundred thirty-two".