28174989294 has 48 divisors (see below), whose sum is σ = 63323415792. Its totient is φ = 9389193408.

The previous prime is 28174989277. The next prime is 28174989319. The reversal of 28174989294 is 49298947182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3520962 + ... + 3528954.

It is an arithmetic number, because the mean of its divisors is an integer number (1319237829).

Almost surely, 2^28174989294 is an apocalyptic number.

28174989294 is an abundant number, since it is smaller than the sum of its proper divisors (35148426498).

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

28174989294 is an equidigital number, since it uses as much as digits as its factorization.

28174989294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15263 (or 15251 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 28174989294 in words is "twenty-eight billion, one hundred seventy-four million, nine hundred eighty-nine thousand, two hundred ninety-four".