28150572530 has 32 divisors (see below), whose sum is σ = 52003265328. Its totient is φ = 10965196800.

The previous prime is 28150572521. The next prime is 28150572553. The reversal of 28150572530 is 3527505182.

It can be written as a sum of positive squares in 8 ways, for example, as 9992201521 + 18158371009 = 99961^2 + 134753^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158354 + ... + 285266.

Almost surely, 2^28150572530 is an apocalyptic number.

28150572530 is a deficient number, since it is larger than the sum of its proper divisors (23852692798).

28150572530 is a wasteful number, since it uses less digits than its factorization.

28150572530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127502.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 28150572530 in words is "twenty-eight billion, one hundred fifty million, five hundred seventy-two thousand, five hundred thirty".