28258765074 has 24 divisors (see below), whose sum is σ = 61232101632. Its totient is φ = 9418853400.

The previous prime is 28258765061. The next prime is 28258765081. The reversal of 28258765074 is 47056785282.

28258765074 is a `hidden beast` number, since 2 + 8 + 2 + 587 + 6 + 50 + 7 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28258765074.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207799 + ... + 315749.

It is an arithmetic number, because the mean of its divisors is an integer number (2551337568).

Almost surely, 2^28258765074 is an apocalyptic number.

28258765074 is an abundant number, since it is smaller than the sum of its proper divisors (32973336558).

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

28258765074 is a wasteful number, since it uses less digits than its factorization.

28258765074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122502 (or 122499 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 28258765074 in words is "twenty-eight billion, two hundred fifty-eight million, seven hundred sixty-five thousand, seventy-four".