258423815720 has 64 divisors (see below), whose sum is σ = 685954483200. Its totient is φ = 85744304640.

The previous prime is 258423815717. The next prime is 258423815801. The reversal of 258423815720 is 27518324852.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14877485 + ... + 14894844.

It is an arithmetic number, because the mean of its divisors is an integer number (10718038800).

Almost surely, 2^258423815720 is an apocalyptic number.

258423815720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258423815720 is an abundant number, since it is smaller than the sum of its proper divisors (427530667480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258423815720 is a wasteful number, since it uses less digits than its factorization.

258423815720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29772378 (or 29772374 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 258423815720 in words is "two hundred fifty-eight billion, four hundred twenty-three million, eight hundred fifteen thousand, seven hundred twenty".