451982836872 has 144 divisors (see below), whose sum is σ = 1469911622400. Its totient is φ = 124972182720.

The previous prime is 451982836867. The next prime is 451982836889. The reversal of 451982836872 is 278638289154.

451982836872 is a `hidden beast` number, since 4 + 519 + 8 + 2 + 8 + 36 + 87 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1956972 + ... + 2175707.

It is an arithmetic number, because the mean of its divisors is an integer number (10207719600).

Almost surely, 2^451982836872 is an apocalyptic number.

451982836872 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

451982836872 is an abundant number, since it is smaller than the sum of its proper divisors (1017928785528).

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

451982836872 is a wasteful number, since it uses less digits than its factorization.

451982836872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132736 (or 4132722 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 451982836872 in words is "four hundred fifty-one billion, nine hundred eighty-two million, eight hundred thirty-six thousand, eight hundred seventy-two".