258397697677 has 8 divisors (see below), whose sum is σ = 295396860096. Its totient is φ = 221419836672.

The previous prime is 258397697671. The next prime is 258397697749. The reversal of 258397697677 is 776796793852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258397697677 - 2²⁷ = 258263479949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258397697671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5299348 + ... + 5347885.

It is an arithmetic number, because the mean of its divisors is an integer number (36924607512).

Almost surely, 2^258397697677 is an apocalyptic number.

It is an amenable number.

258397697677 is a deficient number, since it is larger than the sum of its proper divisors (36999162419).

258397697677 is a wasteful number, since it uses less digits than its factorization.

258397697677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650707.

The product of its digits is 1680315840, while the sum is 76.

The spelling of 258397697677 in words is "two hundred fifty-eight billion, three hundred ninety-seven million, six hundred ninety-seven thousand, six hundred seventy-seven".