451402398724 has 12 divisors (see below), whose sum is σ = 817193997900. Its totient is φ = 217918399328.

The previous prime is 451402398701. The next prime is 451402398737. The reversal of 451402398724 is 427893204154.

It can be written as a sum of positive squares in 2 ways, for example, as 286824513600 + 164577885124 = 535560^2 + 405682^2 .

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, 1945699879 + ... + 1945700110.

It is an arithmetic number, because the mean of its divisors is an integer number (68099499825).

Almost surely, 2^451402398724 is an apocalyptic number.

It is an amenable number.

451402398724 is a deficient number, since it is larger than the sum of its proper divisors (365791599176).

451402398724 is a wasteful number, since it uses less digits than its factorization.

451402398724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891400022 (or 3891400020 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 451402398724 in words is "four hundred fifty-one billion, four hundred two million, three hundred ninety-eight thousand, seven hundred twenty-four".