28116622723 has 8 divisors (see below), whose sum is σ = 32789064800. Its totient is φ = 24099962040.

The previous prime is 28116622669. The next prime is 28116622727. The reversal of 28116622723 is 32722661182.

It is not a de Polignac number, because 28116622723 - 2³³ = 19526688131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28116622727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40985988 + ... + 40986673.

It is an arithmetic number, because the mean of its divisors is an integer number (4098633100).

Almost surely, 2^28116622723 is an apocalyptic number.

28116622723 is a deficient number, since it is larger than the sum of its proper divisors (4672442077).

28116622723 is an frugal number, since it uses more digits than its factorization.

28116622723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81972682 (or 81972668 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The spelling of 28116622723 in words is "twenty-eight billion, one hundred sixteen million, six hundred twenty-two thousand, seven hundred twenty-three".