258913456497 has 6 divisors (see below), whose sum is σ = 373986103842. Its totient is φ = 172608970992.

The previous prime is 258913456453. The next prime is 258913456499. The reversal of 258913456497 is 794654319852.

258913456497 is a `hidden beast` number, since 2 + 5 + 8 + 9 + 134 + 5 + 6 + 497 = 666.

It can be written as a sum of positive squares in only one way, i.e., 149611145616 + 109302310881 = 386796^2 + 330609^2 .

It is not a de Polignac number, because 258913456497 - 2⁶ = 258913456433 is a prime.

It is a super-2 number, since 2×258913456497² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258913456499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14384080908 + ... + 14384080925.

It is an arithmetic number, because the mean of its divisors is an integer number (62331017307).

Almost surely, 2^258913456497 is an apocalyptic number.

It is an amenable number.

258913456497 is a deficient number, since it is larger than the sum of its proper divisors (115072647345).

258913456497 is a wasteful number, since it uses less digits than its factorization.

258913456497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28768161839 (or 28768161836 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 258913456497 in words is "two hundred fifty-eight billion, nine hundred thirteen million, four hundred fifty-six thousand, four hundred ninety-seven".