814255521320 has 64 divisors (see below), whose sum is σ = 1877960678400. Its totient is φ = 317595893760.

The previous prime is 814255521311. The next prime is 814255521397. The reversal of 814255521320 is 23125552418.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289625 + ... + 1308584.

It is an arithmetic number, because the mean of its divisors is an integer number (29343135600).

Almost surely, 2^814255521320 is an apocalyptic number.

It is an amenable number.

814255521320 is an abundant number, since it is smaller than the sum of its proper divisors (1063705157080).

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

814255521320 is a wasteful number, since it uses less digits than its factorization.

814255521320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598538 (or 1598534 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 814255521320 in words is "eight hundred fourteen billion, two hundred fifty-five million, five hundred twenty-one thousand, three hundred twenty".