815274045012 has 24 divisors (see below), whose sum is σ = 2174064120256. Its totient is φ = 232935441408.

The previous prime is 815274044983. The next prime is 815274045031. The reversal of 815274045012 is 210540472518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4852821613 + ... + 4852821780.

Almost surely, 2^815274045012 is an apocalyptic number.

It is an amenable number.

815274045012 is an abundant number, since it is smaller than the sum of its proper divisors (1358790075244).

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

815274045012 is a wasteful number, since it uses less digits than its factorization.

815274045012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705643407 (or 9705643405 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 815274045012 in words is "eight hundred fifteen billion, two hundred seventy-four million, forty-five thousand, twelve".