815094531432 has 24 divisors (see below), whose sum is σ = 2207547689490. Its totient is φ = 271698177120.

The previous prime is 815094531367. The next prime is 815094531443. The reversal of 815094531432 is 234135490518.

815094531432 is a `hidden beast` number, since 8 + 1 + 50 + 9 + 453 + 143 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 753865008516 + 61229522916 = 868254^2 + 247446^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5660378619 + ... + 5660378762.

Almost surely, 2^815094531432 is an apocalyptic number.

It is an amenable number.

815094531432 is an abundant number, since it is smaller than the sum of its proper divisors (1392453158058).

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

815094531432 is a wasteful number, since it uses less digits than its factorization.

815094531432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320757393 (or 11320757386 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 815094531432 in words is "eight hundred fifteen billion, ninety-four million, five hundred thirty-one thousand, four hundred thirty-two".