461891321001 has 32 divisors (see below), whose sum is σ = 746533324800. Its totient is φ = 279918271440.

The previous prime is 461891320997. The next prime is 461891321033. The reversal of 461891321001 is 100123198164.

461891321001 is a `hidden beast` number, since 4 + 618 + 9 + 1 + 32 + 1 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 461891321001 - 2² = 461891320997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (461891321401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7217020 + ... + 7280738.

It is an arithmetic number, because the mean of its divisors is an integer number (23329166400).

Almost surely, 2^461891321001 is an apocalyptic number.

It is an amenable number.

461891321001 is a deficient number, since it is larger than the sum of its proper divisors (284642003799).

461891321001 is a wasteful number, since it uses less digits than its factorization.

461891321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88146 (or 88140 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 461891321001 in words is "four hundred sixty-one billion, eight hundred ninety-one million, three hundred twenty-one thousand, one".