258878349192 has 16 divisors (see below), whose sum is σ = 647195873040. Its totient is φ = 86292783056.

The previous prime is 258878349167. The next prime is 258878349203. The reversal of 258878349192 is 291943878852.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5393298918 + ... + 5393298965.

It is an arithmetic number, because the mean of its divisors is an integer number (40449742065).

Almost surely, 2^258878349192 is an apocalyptic number.

It is an amenable number.

258878349192 is an abundant number, since it is smaller than the sum of its proper divisors (388317523848).

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

258878349192 is a wasteful number, since it uses less digits than its factorization.

258878349192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10786597892 (or 10786597888 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 66.

The spelling of 258878349192 in words is "two hundred fifty-eight billion, eight hundred seventy-eight million, three hundred forty-nine thousand, one hundred ninety-two".