28573102338 has 64 divisors (see below), whose sum is σ = 63502921728. Its totient is φ = 8498128320.

The previous prime is 28573102321. The next prime is 28573102343. The reversal of 28573102338 is 83320137582.

It is a self number, because there is not a number n which added to its sum of digits gives 28573102338.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1213231 + ... + 1236557.

It is an arithmetic number, because the mean of its divisors is an integer number (992233152).

Almost surely, 2^28573102338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28573102338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31751460864).

28573102338 is an abundant number, since it is smaller than the sum of its proper divisors (34929819390).

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

28573102338 is a wasteful number, since it uses less digits than its factorization.

28573102338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23687.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 28573102338 in words is "twenty-eight billion, five hundred seventy-three million, one hundred two thousand, three hundred thirty-eight".