13057871458 has 4 divisors (see below), whose sum is σ = 19586807190. Its totient is φ = 6528935728.

The previous prime is 13057871339. The next prime is 13057871521. The reversal of 13057871458 is 85417875031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85417875031 = 1151 ⋅74211881.

It can be written as a sum of positive squares in only one way, i.e., 8796001369 + 4261870089 = 93787^2 + 65283^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3264467863 + ... + 3264467866.

Almost surely, 2^13057871458 is an apocalyptic number.

13057871458 is a deficient number, since it is larger than the sum of its proper divisors (6528935732).

13057871458 is an equidigital number, since it uses as much as digits as its factorization.

13057871458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6528935731.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 13057871458 in words is "thirteen billion, fifty-seven million, eight hundred seventy-one thousand, four hundred fifty-eight".