28112500571 has 16 divisors (see below), whose sum is σ = 28501593120. Its totient is φ = 27726666240.

The previous prime is 28112500511. The next prime is 28112500579. The reversal of 28112500571 is 17500521182.

It is a cyclic number.

It is not a de Polignac number, because 28112500571 - 2¹⁴ = 28112484187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28112500579) 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, 17172365 + ... + 17174001.

It is an arithmetic number, because the mean of its divisors is an integer number (1781349570).

Almost surely, 2^28112500571 is an apocalyptic number.

28112500571 is a deficient number, since it is larger than the sum of its proper divisors (389092549).

28112500571 is a wasteful number, since it uses less digits than its factorization.

28112500571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494.

The product of its (nonzero) digits is 5600, while the sum is 32.

The spelling of 28112500571 in words is "twenty-eight billion, one hundred twelve million, five hundred thousand, five hundred seventy-one".