457058475721 has 3 divisors (see below), whose sum is σ = 457059151783. Its totient is φ = 457057799660.

The previous prime is 457058475703. The next prime is 457058475751. The reversal of 457058475721 is 127574850754.

The square root of 457058475721 is 676061.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 119985339321 + 337073136400 = 346389^2 + 580580^2 .

It is not a de Polignac number, because 457058475721 - 2⁵ = 457058475689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457058475701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 338031 + ... + 1014091.

Almost surely, 2^457058475721 is an apocalyptic number.

457058475721 is the 676061-st square number.

457058475721 is the 338031-st centered octagonal number.

It is an amenable number.

457058475721 is a deficient number, since it is larger than the sum of its proper divisors (676062).

457058475721 is an frugal number, since it uses more digits than its factorization.

457058475721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352122 (or 676061 counting only the distinct ones).

The product of its (nonzero) digits is 10976000, while the sum is 55.

The spelling of 457058475721 in words is "four hundred fifty-seven billion, fifty-eight million, four hundred seventy-five thousand, seven hundred twenty-one".