28647070244 has 24 divisors (see below), whose sum is σ = 53995058040. Its totient is φ = 13220169984.

The previous prime is 28647070219. The next prime is 28647070267. The reversal of 28647070244 is 44207074682.

It can be written as a sum of positive squares in 4 ways, for example, as 5569600 + 28641500644 = 2360^2 + 169238^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28647070195 and 28647070204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496232 + ... + 550944.

It is an arithmetic number, because the mean of its divisors is an integer number (2249794085).

Almost surely, 2^28647070244 is an apocalyptic number.

It is an amenable number.

28647070244 is a deficient number, since it is larger than the sum of its proper divisors (25347987796).

28647070244 is a wasteful number, since it uses less digits than its factorization.

28647070244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64799 (or 64797 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 44.

The spelling of 28647070244 in words is "twenty-eight billion, six hundred forty-seven million, seventy thousand, two hundred forty-four".