451868644108 has 24 divisors (see below), whose sum is σ = 903950020512. Its totient is φ = 193612404864.

The previous prime is 451868644099. The next prime is 451868644133. The reversal of 451868644108 is 801446868154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778185 + ... + 2016352.

It is an arithmetic number, because the mean of its divisors is an integer number (37664584188).

Almost surely, 2^451868644108 is an apocalyptic number.

It is an amenable number.

451868644108 is an abundant number, since it is smaller than the sum of its proper divisors (452081376404).

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

451868644108 is a wasteful number, since it uses less digits than its factorization.

451868644108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798801 (or 3798799 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 55.

The spelling of 451868644108 in words is "four hundred fifty-one billion, eight hundred sixty-eight million, six hundred forty-four thousand, one hundred eight".