28497081158 has 24 divisors (see below), whose sum is σ = 52899066288. Its totient is φ = 11273569632.

The previous prime is 28497081139. The next prime is 28497081241. The reversal of 28497081158 is 85118079482.

It is a congruent number.

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, 6019841 + ... + 6024572.

It is an arithmetic number, because the mean of its divisors is an integer number (2204127762).

Almost surely, 2^28497081158 is an apocalyptic number.

28497081158 is a deficient number, since it is larger than the sum of its proper divisors (24401985130).

28497081158 is a wasteful number, since it uses less digits than its factorization.

28497081158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044448 (or 12044435 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 28497081158 in words is "twenty-eight billion, four hundred ninety-seven million, eighty-one thousand, one hundred fifty-eight".