258794066772 has 24 divisors (see below), whose sum is σ = 670947580800. Its totient is φ = 86264688888.

The previous prime is 258794066771. The next prime is 258794066779. The reversal of 258794066772 is 277660497852.

258794066772 is a `hidden beast` number, since 2 + 587 + 9 + 40 + 6 + 6 + 7 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258794066771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198120572 + ... + 1198120787.

It is an arithmetic number, because the mean of its divisors is an integer number (27956149200).

Almost surely, 2^258794066772 is an apocalyptic number.

It is an amenable number.

258794066772 is an abundant number, since it is smaller than the sum of its proper divisors (412153514028).

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

258794066772 is a wasteful number, since it uses less digits than its factorization.

258794066772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396241372 (or 2396241364 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 258794066772 in words is "two hundred fifty-eight billion, seven hundred ninety-four million, sixty-six thousand, seven hundred seventy-two".