28937421324 has 288 divisors, whose sum is σ = 89092104192. Its totient is φ = 7744896000.

The previous prime is 28937421313. The next prime is 28937421379. The reversal of 28937421324 is 42312473982.

28937421324 is a `hidden beast` number, since 289 + 3 + 7 + 42 + 1 + 324 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28937421324.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53488494 + ... + 53489034.

It is an arithmetic number, because the mean of its divisors is an integer number (309347584).

Almost surely, 2^28937421324 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 28937421324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44546052096).

28937421324 is an abundant number, since it is smaller than the sum of its proper divisors (60154682868).

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

28937421324 is a wasteful number, since it uses less digits than its factorization.

28937421324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 792 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 28937421324 in words is "twenty-eight billion, nine hundred thirty-seven million, four hundred twenty-one thousand, three hundred twenty-four".