407981321968 has 20 divisors (see below), whose sum is σ = 862324158168. Its totient is φ = 185446055360.

The previous prime is 407981321953. The next prime is 407981321971. The reversal of 407981321968 is 869123189704.

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, 1159037671 + ... + 1159038022.

Almost surely, 2^407981321968 is an apocalyptic number.

It is an amenable number.

407981321968 is an abundant number, since it is smaller than the sum of its proper divisors (454342836200).

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

407981321968 is a wasteful number, since it uses less digits than its factorization.

407981321968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318075712 (or 2318075706 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 407981321968 in words is "four hundred seven billion, nine hundred eighty-one million, three hundred twenty-one thousand, nine hundred sixty-eight".