258151287642 has 32 divisors (see below), whose sum is σ = 524888488320. Its totient is φ = 84620099520.

The previous prime is 258151287623. The next prime is 258151287649. The reversal of 258151287642 is 246782151852.

It is a happy number.

It is a super-2 number, since 2×258151287642² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258151287649) 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, 1539084 + ... + 1698552.

It is an arithmetic number, because the mean of its divisors is an integer number (16402765260).

Almost surely, 2^258151287642 is an apocalyptic number.

258151287642 is an abundant number, since it is smaller than the sum of its proper divisors (266737200678).

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

258151287642 is a wasteful number, since it uses less digits than its factorization.

258151287642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163958.

The product of its digits is 2150400, while the sum is 51.

The spelling of 258151287642 in words is "two hundred fifty-eight billion, one hundred fifty-one million, two hundred eighty-seven thousand, six hundred forty-two".