814815592972 has 12 divisors (see below), whose sum is σ = 1425939676000. Its totient is φ = 407404256976.

The previous prime is 814815592963. The next prime is 814815592973. The reversal of 814815592972 is 279295518418.

814815592972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 814815592972.

It is not an unprimeable number, because it can be changed into a prime (814815592973) 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, 327972 + ... + 1318027.

Almost surely, 2^814815592972 is an apocalyptic number.

It is an amenable number.

814815592972 is a deficient number, since it is larger than the sum of its proper divisors (611124083028).

814815592972 is a wasteful number, since it uses less digits than its factorization.

814815592972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769760 (or 1769758 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 61.

The spelling of 814815592972 in words is "eight hundred fourteen billion, eight hundred fifteen million, five hundred ninety-two thousand, nine hundred seventy-two".