28760768392 has 32 divisors (see below), whose sum is σ = 54492079320. Its totient is φ = 14230213120.

The previous prime is 28760768381. The next prime is 28760768423. The reversal of 28760768392 is 29386706782.

It can be written as a sum of positive squares in 4 ways, for example, as 12689121316 + 16071647076 = 112646^2 + 126774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306042 + ... + 388822.

Almost surely, 2^28760768392 is an apocalyptic number.

It is an amenable number.

28760768392 is a deficient number, since it is larger than the sum of its proper divisors (25731310928).

28760768392 is a wasteful number, since it uses less digits than its factorization.

28760768392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83241 (or 83237 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 28760768392 in words is "twenty-eight billion, seven hundred sixty million, seven hundred sixty-eight thousand, three hundred ninety-two".