28633377796 has 81 divisors (see below), whose sum is σ = 54512277183. Its totient is φ = 13158080640.

The previous prime is 28633377791. The next prime is 28633377809. The reversal of 28633377796 is 69777333682.

The square root of 28633377796 is 169214.

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

It can be written as a sum of positive squares in 4 ways, for example, as 7473602500 + 21159775296 = 86450^2 + 145464^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28633377791) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 392238016 + ... + 392238088.

Almost surely, 2^28633377796 is an apocalyptic number.

28633377796 is the 169214-th square number.

It is an amenable number.

28633377796 is a deficient number, since it is larger than the sum of its proper divisors (25878899387).

28633377796 is an equidigital number, since it uses as much as digits as its factorization.

28633377796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 155 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 61.

The spelling of 28633377796 in words is "twenty-eight billion, six hundred thirty-three million, three hundred seventy-seven thousand, seven hundred ninety-six".