28528325322 has 32 divisors (see below), whose sum is σ = 65212605312. Its totient is φ = 8150324544.

The previous prime is 28528325299. The next prime is 28528325323. The reversal of 28528325322 is 22352382582.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28528325323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065888 + ... + 1092324.

It is an arithmetic number, because the mean of its divisors is an integer number (2037893916).

Almost surely, 2^28528325322 is an apocalyptic number.

28528325322 is an abundant number, since it is smaller than the sum of its proper divisors (36684279990).

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

28528325322 is a wasteful number, since it uses less digits than its factorization.

28528325322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52142.

The product of its digits is 460800, while the sum is 42.

The spelling of 28528325322 in words is "twenty-eight billion, five hundred twenty-eight million, three hundred twenty-five thousand, three hundred twenty-two".