28420572874 has 16 divisors (see below), whose sum is σ = 42828458400. Its totient is φ = 14144494000.

The previous prime is 28420572853. The next prime is 28420572881. The reversal of 28420572874 is 47827502482.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792177 + ... + 827275.

It is an arithmetic number, because the mean of its divisors is an integer number (2676778650).

Almost surely, 2^28420572874 is an apocalyptic number.

28420572874 is a deficient number, since it is larger than the sum of its proper divisors (14407885526).

28420572874 is a wasteful number, since it uses less digits than its factorization.

28420572874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36965.

The product of its (nonzero) digits is 2007040, while the sum is 49.

The spelling of 28420572874 in words is "twenty-eight billion, four hundred twenty million, five hundred seventy-two thousand, eight hundred seventy-four".