28103633244 has 36 divisors (see below), whose sum is σ = 71046528280. Its totient is φ = 9366982560.

The previous prime is 28103633227. The next prime is 28103633251. The reversal of 28103633244 is 44233630182.

28103633244 is a `hidden beast` number, since 2 + 8 + 10 + 3 + 633 + 2 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 28103633199 and 28103633208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422199 + ... + 484209.

Almost surely, 2^28103633244 is an apocalyptic number.

It is an amenable number.

28103633244 is an abundant number, since it is smaller than the sum of its proper divisors (42942895036).

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

28103633244 is a wasteful number, since it uses less digits than its factorization.

28103633244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74610 (or 74605 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 28103633244 in words is "twenty-eight billion, one hundred three million, six hundred thirty-three thousand, two hundred forty-four".