818878897132 has 24 divisors (see below), whose sum is σ = 1437867026960. Its totient is φ = 408060607680.

The previous prime is 818878897129. The next prime is 818878897159. The reversal of 818878897132 is 231798878818.

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, 3756094 + ... + 3968122.

Almost surely, 2^818878897132 is an apocalyptic number.

It is an amenable number.

818878897132 is a deficient number, since it is larger than the sum of its proper divisors (618988129828).

818878897132 is a wasteful number, since it uses less digits than its factorization.

818878897132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215281 (or 215279 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 70.

The spelling of 818878897132 in words is "eight hundred eighteen billion, eight hundred seventy-eight million, eight hundred ninety-seven thousand, one hundred thirty-two".