258791503920 has 80 divisors (see below), whose sum is σ = 814227648000. Its totient is φ = 67981047552.

The previous prime is 258791503909. The next prime is 258791503933. The reversal of 258791503920 is 29305197852.

It is a tau number, because it is divible by the number of its divisors (80).

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, 8030920 + ... + 8063079.

It is an arithmetic number, because the mean of its divisors is an integer number (10177845600).

Almost surely, 2^258791503920 is an apocalyptic number.

258791503920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258791503920 is an abundant number, since it is smaller than the sum of its proper divisors (555436144080).

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

258791503920 is a wasteful number, since it uses less digits than its factorization.

258791503920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16094082 (or 16094076 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 258791503920 in words is "two hundred fifty-eight billion, seven hundred ninety-one million, five hundred three thousand, nine hundred twenty".