321633793952 has 12 divisors (see below), whose sum is σ = 633216531906. Its totient is φ = 160816896960.

The previous prime is 321633793951. The next prime is 321633794021. The reversal of 321633793952 is 259397336123.

It can be written as a sum of positive squares in only one way, i.e., 208304611216 + 113329182736 = 456404^2 + 336644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321633793894 and 321633793903.

It is not an unprimeable number, because it can be changed into a prime (321633793951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025527999 + ... + 5025528062.

Almost surely, 2^321633793952 is an apocalyptic number.

321633793952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321633793952 is a deficient number, since it is larger than the sum of its proper divisors (311582737954).

321633793952 is a wasteful number, since it uses less digits than its factorization.

321633793952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051056071 (or 10051056063 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 53.

The spelling of 321633793952 in words is "three hundred twenty-one billion, six hundred thirty-three million, seven hundred ninety-three thousand, nine hundred fifty-two".