28206506724 has 48 divisors (see below), whose sum is σ = 71952281856. Its totient is φ = 8529104800.

The previous prime is 28206506723. The next prime is 28206506759. The reversal of 28206506724 is 42760560282.

It is not an unprimeable number, because it can be changed into a prime (28206506723) 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, 167142 + ... + 290429.

It is an arithmetic number, because the mean of its divisors is an integer number (1499005872).

Almost surely, 2^28206506724 is an apocalyptic number.

It is an amenable number.

28206506724 is an abundant number, since it is smaller than the sum of its proper divisors (43745775132).

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

28206506724 is a wasteful number, since it uses less digits than its factorization.

28206506724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458056 (or 458054 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 28206506724 in words is "twenty-eight billion, two hundred six million, five hundred six thousand, seven hundred twenty-four".