258622881602 has 6 divisors (see below), whose sum is σ = 387935401203. Its totient is φ = 129311081202.

The previous prime is 258622881593. The next prime is 258622881613. The reversal of 258622881602 is 206188226852.

It can be written as a sum of positive squares in only one way, i.e., 129311440801 + 129311440801 = 359599^2 + 359599^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=359599.

It is a super-2 number, since 2×258622881602² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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, 539399 + ... + 898997.

Almost surely, 2^258622881602 is an apocalyptic number.

258622881602 is a deficient number, since it is larger than the sum of its proper divisors (129312519601).

258622881602 is an frugal number, since it uses more digits than its factorization.

258622881602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719200 (or 359601 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

Multiplying 258622881602 by its sum of digits (50), we get a square (12931144080100 = 3595990²).

The spelling of 258622881602 in words is "two hundred fifty-eight billion, six hundred twenty-two million, eight hundred eighty-one thousand, six hundred two".