28364172650 has 72 divisors (see below), whose sum is σ = 58191048972. Its totient is φ = 10278400000.

The previous prime is 28364172643. The next prime is 28364172671. The reversal of 28364172650 is 5627146382.

It can be written as a sum of positive squares in 6 ways, for example, as 22820029969 + 5544142681 = 151063^2 + 74459^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1764650 + ... + 1780650.

Almost surely, 2^28364172650 is an apocalyptic number.

28364172650 is an abundant number, since it is smaller than the sum of its proper divisors (29826876322).

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

28364172650 is a wasteful number, since it uses less digits than its factorization.

28364172650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16328 (or 16312 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 28364172650 in words is "twenty-eight billion, three hundred sixty-four million, one hundred seventy-two thousand, six hundred fifty".