28555415322 has 24 divisors (see below), whose sum is σ = 66435048576. Its totient is φ = 8158690008.

The previous prime is 28555415309. The next prime is 28555415323. The reversal of 28555415322 is 22351455582.

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 (28555415323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48563338 + ... + 48563925.

It is an arithmetic number, because the mean of its divisors is an integer number (2768127024).

Almost surely, 2^28555415322 is an apocalyptic number.

28555415322 is an abundant number, since it is smaller than the sum of its proper divisors (37879633254).

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

28555415322 is a wasteful number, since it uses less digits than its factorization.

28555415322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97127282 (or 97127275 counting only the distinct ones).

The product of its digits is 480000, while the sum is 42.

The spelling of 28555415322 in words is "twenty-eight billion, five hundred fifty-five million, four hundred fifteen thousand, three hundred twenty-two".