28774414432 has 48 divisors (see below), whose sum is σ = 57625936704. Its totient is φ = 14139648000.

The previous prime is 28774414391. The next prime is 28774414483. The reversal of 28774414432 is 23441447782.

It is a congruent number.

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, 2651257 + ... + 2662087.

It is an arithmetic number, because the mean of its divisors is an integer number (1200540348).

Almost surely, 2^28774414432 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 28774414432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28812968352).

28774414432 is an abundant number, since it is smaller than the sum of its proper divisors (28851522272).

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

28774414432 is a wasteful number, since it uses less digits than its factorization.

28774414432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263 (or 12255 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 46.

The spelling of 28774414432 in words is "twenty-eight billion, seven hundred seventy-four million, four hundred fourteen thousand, four hundred thirty-two".