258795517922 has 6 divisors (see below), whose sum is σ = 388194356043. Its totient is φ = 129397399242.

The previous prime is 258795517921. The next prime is 258795517951. The reversal of 258795517922 is 229715597852.

258795517922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 129397758961 + 129397758961 = 359719^2 + 359719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=359719.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258795517921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 539579 + ... + 899297.

Almost surely, 2^258795517922 is an apocalyptic number.

258795517922 is a deficient number, since it is larger than the sum of its proper divisors (129398838121).

258795517922 is an frugal number, since it uses more digits than its factorization.

258795517922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719440 (or 359721 counting only the distinct ones).

The product of its digits is 31752000, while the sum is 62.

The spelling of 258795517922 in words is "two hundred fifty-eight billion, seven hundred ninety-five million, five hundred seventeen thousand, nine hundred twenty-two".