457642152886 has 4 divisors (see below), whose sum is σ = 686463229332. Its totient is φ = 228821076442.

The previous prime is 457642152827. The next prime is 457642152893. The reversal of 457642152886 is 688251246754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688251246754 = 2 ⋅344125623377.

It is a self number, because there is not a number n which added to its sum of digits gives 457642152886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114410538220 + ... + 114410538223.

It is an arithmetic number, because the mean of its divisors is an integer number (171615807333).

Almost surely, 2^457642152886 is an apocalyptic number.

457642152886 is a deficient number, since it is larger than the sum of its proper divisors (228821076446).

457642152886 is a wasteful number, since it uses less digits than its factorization.

457642152886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228821076445.

The product of its digits is 25804800, while the sum is 58.

The spelling of 457642152886 in words is "four hundred fifty-seven billion, six hundred forty-two million, one hundred fifty-two thousand, eight hundred eighty-six".