28570816012 has 24 divisors (see below), whose sum is σ = 52947772416. Its totient is φ = 13443126528.

The previous prime is 28570816009. The next prime is 28570816019. The reversal of 28570816012 is 21061807582.

It is not an unprimeable number, because it can be changed into a prime (28570816019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507253 + ... + 560755.

It is an arithmetic number, because the mean of its divisors is an integer number (2206157184).

Almost surely, 2^28570816012 is an apocalyptic number.

It is an amenable number.

28570816012 is a deficient number, since it is larger than the sum of its proper divisors (24376956404).

28570816012 is a wasteful number, since it uses less digits than its factorization.

28570816012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61377 (or 61375 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 28570816012 in words is "twenty-eight billion, five hundred seventy million, eight hundred sixteen thousand, twelve".