451173872568 has 16 divisors (see below), whose sum is σ = 1127934681480. Its totient is φ = 150391290848.

The previous prime is 451173872557. The next prime is 451173872609. The reversal of 451173872568 is 865278371154.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9399455655 + ... + 9399455702.

Almost surely, 2^451173872568 is an apocalyptic number.

It is an amenable number.

451173872568 is an abundant number, since it is smaller than the sum of its proper divisors (676760808912).

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

451173872568 is a wasteful number, since it uses less digits than its factorization.

451173872568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18798911366 (or 18798911362 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 451173872568 in words is "four hundred fifty-one billion, one hundred seventy-three million, eight hundred seventy-two thousand, five hundred sixty-eight".