258072064491 has 16 divisors (see below), whose sum is σ = 347482306080. Its totient is φ = 170363093760.

The previous prime is 258072064469. The next prime is 258072064507. The reversal of 258072064491 is 194460270852.

It is not a de Polignac number, because 258072064491 - 2⁹ = 258072063979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258072064491.

It is not an unprimeable number, because it can be changed into a prime (258072064891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893376 + ... + 1146413.

It is an arithmetic number, because the mean of its divisors is an integer number (21717644130).

Almost surely, 2^258072064491 is an apocalyptic number.

258072064491 is a deficient number, since it is larger than the sum of its proper divisors (89410241589).

258072064491 is a wasteful number, since it uses less digits than its factorization.

258072064491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040206.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 258072064491 in words is "two hundred fifty-eight billion, seventy-two million, sixty-four thousand, four hundred ninety-one".