815732306268 has 36 divisors (see below), whose sum is σ = 2092139885640. Its totient is φ = 247191607520.

The previous prime is 815732306251. The next prime is 815732306273. The reversal of 815732306268 is 862603237518.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 815732306268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280898103 + ... + 280901006.

Almost surely, 2^815732306268 is an apocalyptic number.

It is an amenable number.

815732306268 is an abundant number, since it is smaller than the sum of its proper divisors (1276407579372).

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

815732306268 is a wasteful number, since it uses less digits than its factorization.

815732306268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561799138 (or 561799125 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 815732306268 in words is "eight hundred fifteen billion, seven hundred thirty-two million, three hundred six thousand, two hundred sixty-eight".