28774402824 has 32 divisors (see below), whose sum is σ = 72048270240. Its totient is φ = 9576499200.

The previous prime is 28774402763. The next prime is 28774402843. The reversal of 28774402824 is 42820447782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919822 + ... + 950589.

It is an arithmetic number, because the mean of its divisors is an integer number (2251508445).

Almost surely, 2^28774402824 is an apocalyptic number.

28774402824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28774402824 is an abundant number, since it is smaller than the sum of its proper divisors (43273867416).

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

28774402824 is a wasteful number, since it uses less digits than its factorization.

28774402824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871061 (or 1871057 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 48.

The spelling of 28774402824 in words is "twenty-eight billion, seven hundred seventy-four million, four hundred two thousand, eight hundred twenty-four".