28715870292 has 96 divisors (see below), whose sum is σ = 69226819200. Its totient is φ = 9260697600.

The previous prime is 28715870279. The next prime is 28715870347. The reversal of 28715870292 is 29207851782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13745184 + ... + 13747272.

It is an arithmetic number, because the mean of its divisors is an integer number (721112700).

Almost surely, 2^28715870292 is an apocalyptic number.

It is an amenable number.

28715870292 is an abundant number, since it is smaller than the sum of its proper divisors (40510948908).

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

28715870292 is a wasteful number, since it uses less digits than its factorization.

28715870292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 28715870292 in words is "twenty-eight billion, seven hundred fifteen million, eight hundred seventy thousand, two hundred ninety-two".