258192728956 has 12 divisors (see below), whose sum is σ = 452599231392. Its totient is φ = 128878662848.

The previous prime is 258192728923. The next prime is 258192728957. The reversal of 258192728956 is 659827291852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258192728957) 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, 54422740 + ... + 54427483.

It is an arithmetic number, because the mean of its divisors is an integer number (37716602616).

Almost surely, 2^258192728956 is an apocalyptic number.

It is an amenable number.

258192728956 is a deficient number, since it is larger than the sum of its proper divisors (194406502436).

258192728956 is a wasteful number, since it uses less digits than its factorization.

258192728956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108850820 (or 108850818 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 64.

The spelling of 258192728956 in words is "two hundred fifty-eight billion, one hundred ninety-two million, seven hundred twenty-eight thousand, nine hundred fifty-six".