28874457396 has 48 divisors (see below), whose sum is σ = 78799694400. Its totient is φ = 9118249056.

The previous prime is 28874457389. The next prime is 28874457401. The reversal of 28874457396 is 69375447882.

28874457396 is a `hidden beast` number, since 2 + 88 + 74 + 457 + 39 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7033635 + ... + 7037738.

It is an arithmetic number, because the mean of its divisors is an integer number (1641660300).

Almost surely, 2^28874457396 is an apocalyptic number.

It is an amenable number.

28874457396 is an abundant number, since it is smaller than the sum of its proper divisors (49925237004).

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

28874457396 is a wasteful number, since it uses less digits than its factorization.

28874457396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14071405 (or 14071397 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 28874457396 in words is "twenty-eight billion, eight hundred seventy-four million, four hundred fifty-seven thousand, three hundred ninety-six".