811572270312 has 16 divisors (see below), whose sum is σ = 2028930675840. Its totient is φ = 270524090096.

The previous prime is 811572270259. The next prime is 811572270319. The reversal of 811572270312 is 213072275118.

It is not an unprimeable number, because it can be changed into a prime (811572270319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16907755608 + ... + 16907755655.

It is an arithmetic number, because the mean of its divisors is an integer number (126808167240).

Almost surely, 2^811572270312 is an apocalyptic number.

It is an amenable number.

811572270312 is an abundant number, since it is smaller than the sum of its proper divisors (1217358405528).

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

811572270312 is a wasteful number, since it uses less digits than its factorization.

811572270312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33815511272 (or 33815511268 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 811572270312 in words is "eight hundred eleven billion, five hundred seventy-two million, two hundred seventy thousand, three hundred twelve".