28107523044 has 48 divisors (see below), whose sum is σ = 73395649600. Its totient is φ = 9301765248.

The previous prime is 28107523043. The next prime is 28107523069. The reversal of 28107523044 is 44032570182.

It is a happy number.

28107523044 is a `hidden beast` number, since 28 + 107 + 523 + 0 + 4 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (28107523043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921157 + ... + 951180.

Almost surely, 2^28107523044 is an apocalyptic number.

It is an amenable number.

28107523044 is an abundant number, since it is smaller than the sum of its proper divisors (45288126556).

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

28107523044 is a wasteful number, since it uses less digits than its factorization.

28107523044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872489 (or 1872481 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 28107523044 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-three thousand, forty-four".