258144117512 has 12 divisors (see below), whose sum is σ = 484022914845. Its totient is φ = 129071340224.

The previous prime is 258144117493. The next prime is 258144117523. The reversal of 258144117512 is 215711441852.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 240792378436 + 17351739076 = 490706^2 + 131726^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=359266.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258144117512.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1347248 + ... + 1526880.

Almost surely, 2^258144117512 is an apocalyptic number.

It is an amenable number.

258144117512 is a deficient number, since it is larger than the sum of its proper divisors (225878797333).

258144117512 is an frugal number, since it uses more digits than its factorization.

258144117512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359272 (or 179635 counting only the distinct ones).

The product of its digits is 89600, while the sum is 41.

The spelling of 258144117512 in words is "two hundred fifty-eight billion, one hundred forty-four million, one hundred seventeen thousand, five hundred twelve".