28277112964 has 27 divisors (see below), whose sum is σ = 50137829413. Its totient is φ = 13954423472.

The previous prime is 28277112943. The next prime is 28277112967. The reversal of 28277112964 is 46921177282.

The square root of 28277112964 is 168158.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 55800900 + 28221312064 = 7470^2 + 167992^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28277112967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27913722 + ... + 27914734.

Almost surely, 2^28277112964 is an apocalyptic number.

28277112964 is the 168158-th square number.

It is an amenable number.

28277112964 is a deficient number, since it is larger than the sum of its proper divisors (21860716449).

28277112964 is an frugal number, since it uses more digits than its factorization.

28277112964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 1098 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

Multiplying 28277112964 by its sum of digits (49), we get a square (1385578535236 = 1177106²).

The spelling of 28277112964 in words is "twenty-eight billion, two hundred seventy-seven million, one hundred twelve thousand, nine hundred sixty-four".