28154828976 has 120 divisors (see below), whose sum is σ = 77911781184. Its totient is φ = 8757936000.

The previous prime is 28154828939. The next prime is 28154829007. The reversal of 28154828976 is 67982845182.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1148851 + ... + 1173101.

Almost surely, 2^28154828976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28154828976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38955890592).

28154828976 is an abundant number, since it is smaller than the sum of its proper divisors (49756952208).

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

28154828976 is a wasteful number, since it uses less digits than its factorization.

28154828976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24367 (or 24342 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The spelling of 28154828976 in words is "twenty-eight billion, one hundred fifty-four million, eight hundred twenty-eight thousand, nine hundred seventy-six".