457645017808 has 20 divisors (see below), whose sum is σ = 967295151648. Its totient is φ = 208020462560.

The previous prime is 457645017793. The next prime is 457645017827. The reversal of 457645017808 is 808710546754.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300127716 + ... + 1300128067.

Almost surely, 2^457645017808 is an apocalyptic number.

It is an amenable number.

457645017808 is an abundant number, since it is smaller than the sum of its proper divisors (509650133840).

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

457645017808 is a wasteful number, since it uses less digits than its factorization.

457645017808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600255802 (or 2600255796 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 457645017808 in words is "four hundred fifty-seven billion, six hundred forty-five million, seventeen thousand, eight hundred eight".