28338564322 has 8 divisors (see below), whose sum is σ = 42536322396. Its totient is φ = 14159790192.

The previous prime is 28338564301. The next prime is 28338564337. The reversal of 28338564322 is 22346583382.

It can be written as a sum of positive squares in 2 ways, for example, as 26353950921 + 1984613401 = 162339^2 + 44549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4742253 + ... + 4748224.

Almost surely, 2^28338564322 is an apocalyptic number.

28338564322 is a deficient number, since it is larger than the sum of its proper divisors (14197758074).

28338564322 is a wasteful number, since it uses less digits than its factorization.

28338564322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491972.

The product of its digits is 1658880, while the sum is 46.

The spelling of 28338564322 in words is "twenty-eight billion, three hundred thirty-eight million, five hundred sixty-four thousand, three hundred twenty-two".