866530972932 has 24 divisors (see below), whose sum is σ = 2046265914336. Its totient is φ = 285363613248.

The previous prime is 866530972897. The next prime is 866530972943. The reversal of 866530972932 is 239279035668.

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, 435004513 + ... + 435006504.

It is an arithmetic number, because the mean of its divisors is an integer number (85261079764).

Almost surely, 2^866530972932 is an apocalyptic number.

It is an amenable number.

866530972932 is an abundant number, since it is smaller than the sum of its proper divisors (1179734941404).

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

866530972932 is a wasteful number, since it uses less digits than its factorization.

866530972932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870011107 (or 870011105 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 60.

The spelling of 866530972932 in words is "eight hundred sixty-six billion, five hundred thirty million, nine hundred seventy-two thousand, nine hundred thirty-two".