28298364156 has 36 divisors (see below), whose sum is σ = 73195514392. Its totient is φ = 9213420384.

The previous prime is 28298364137. The next prime is 28298364179. The reversal of 28298364156 is 65146389282.

It is a tau number, because it is divible by the number of its divisors (36).

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, 9138751 + ... + 9141846.

Almost surely, 2^28298364156 is an apocalyptic number.

It is an amenable number.

28298364156 is an abundant number, since it is smaller than the sum of its proper divisors (44897150236).

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

28298364156 is a wasteful number, since it uses less digits than its factorization.

28298364156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280650 (or 18280645 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 28298364156 in words is "twenty-eight billion, two hundred ninety-eight million, three hundred sixty-four thousand, one hundred fifty-six".