258478679233 has 4 divisors (see below), whose sum is σ = 258593919408. Its totient is φ = 258363439060.

The previous prime is 258478679227. The next prime is 258478679243. The reversal of 258478679233 is 332976874852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258478679233 - 2¹³ = 258478671041 is a prime.

It is a super-2 number, since 2×258478679233² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258478679243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57616723 + ... + 57621208.

It is an arithmetic number, because the mean of its divisors is an integer number (64648479852).

Almost surely, 2^258478679233 is an apocalyptic number.

It is an amenable number.

258478679233 is a deficient number, since it is larger than the sum of its proper divisors (115240175).

258478679233 is a wasteful number, since it uses less digits than its factorization.

258478679233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115240174.

The product of its digits is 121927680, while the sum is 64.

The spelling of 258478679233 in words is "two hundred fifty-eight billion, four hundred seventy-eight million, six hundred seventy-nine thousand, two hundred thirty-three".