451979898944 has 112 divisors (see below), whose sum is σ = 1028879953920. Its totient is φ = 192978762240.

The previous prime is 451979898907. The next prime is 451979898961. The reversal of 451979898944 is 449898979154.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204792689 + ... + 204794895.

It is an arithmetic number, because the mean of its divisors is an integer number (9186428160).

Almost surely, 2^451979898944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451979898944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514439976960).

451979898944 is an abundant number, since it is smaller than the sum of its proper divisors (576900054976).

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

451979898944 is a wasteful number, since it uses less digits than its factorization.

451979898944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736 (or 3726 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 77.

The spelling of 451979898944 in words is "four hundred fifty-one billion, nine hundred seventy-nine million, eight hundred ninety-eight thousand, nine hundred forty-four".