28374492832 has 96 divisors (see below), whose sum is σ = 65036442240. Its totient is φ = 11935226880.

The previous prime is 28374492793. The next prime is 28374492857. The reversal of 28374492832 is 23829447382.

It is a happy number.

It is a super-2 number, since 2×28374492832² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28374492832.

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, 2607082 + ... + 2617942.

It is an arithmetic number, because the mean of its divisors is an integer number (677462940).

Almost surely, 2^28374492832 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 28374492832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32518221120).

28374492832 is an abundant number, since it is smaller than the sum of its proper divisors (36661949408).

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

28374492832 is a wasteful number, since it uses less digits than its factorization.

28374492832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094 (or 11086 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 52.

The spelling of 28374492832 in words is "twenty-eight billion, three hundred seventy-four million, four hundred ninety-two thousand, eight hundred thirty-two".