321786412032 has 44 divisors (see below), whose sum is σ = 857678114216. Its totient is φ = 107262136320.

The previous prime is 321786411971. The next prime is 321786412043. The reversal of 321786412032 is 230214687123.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52371019 + ... + 52377162.

It is an arithmetic number, because the mean of its divisors is an integer number (19492684414).

Almost surely, 2^321786412032 is an apocalyptic number.

321786412032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321786412032 is an abundant number, since it is smaller than the sum of its proper divisors (535891702184).

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

321786412032 is a wasteful number, since it uses less digits than its factorization.

321786412032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104748204 (or 104748186 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 321786412032 in words is "three hundred twenty-one billion, seven hundred eighty-six million, four hundred twelve thousand, thirty-two".