28674680896 has 63 divisors (see below), whose sum is σ = 58016613837. Its totient is φ = 14061661440.

The previous prime is 28674680843. The next prime is 28674680897. The reversal of 28674680896 is 69808647682.

The square root of 28674680896 is 169336.

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., 932447296 + 27742233600 = 30536^2 + 166560^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28674680897) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82635795 + ... + 82636141.

Almost surely, 2^28674680896 is an apocalyptic number.

28674680896 is the 169336-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28674680896

28674680896 is an abundant number, since it is smaller than the sum of its proper divisors (29341932941).

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

28674680896 is an frugal number, since it uses more digits than its factorization.

28674680896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 64.

Multiplying 28674680896 by its sum of digits (64), we get a square (1835179577344 = 1354688²).

28674680896 divided by its sum of digits (64) gives a square (448041889 = 21167²).

The spelling of 28674680896 in words is "twenty-eight billion, six hundred seventy-four million, six hundred eighty thousand, eight hundred ninety-six".