457845378444 has 72 divisors (see below), whose sum is σ = 1171206036000. Its totient is φ = 150793311744.

The previous prime is 457845378433. The next prime is 457845378493. The reversal of 457845378444 is 444873548754.

It is a happy number.

457845378444 is a `hidden beast` number, since 4 + 5 + 78 + 4 + 53 + 78 + 444 = 666.

It is a super-2 number, since 2×457845378444² (a number of 24 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1246212 + ... + 1571220.

It is an arithmetic number, because the mean of its divisors is an integer number (16266750500).

Almost surely, 2^457845378444 is an apocalyptic number.

It is an amenable number.

457845378444 is an abundant number, since it is smaller than the sum of its proper divisors (713360657556).

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

457845378444 is a wasteful number, since it uses less digits than its factorization.

457845378444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325487 (or 325482 counting only the distinct ones).

The product of its digits is 240844800, while the sum is 63.

The spelling of 457845378444 in words is "four hundred fifty-seven billion, eight hundred forty-five million, three hundred seventy-eight thousand, four hundred forty-four".