28707490806 has 16 divisors (see below), whose sum is σ = 57461713200. Its totient is φ = 9561375008.

The previous prime is 28707490771. The next prime is 28707490813. The reversal of 28707490806 is 60809470782.

It is a congruent number.

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, 1939161 + ... + 1953908.

It is an arithmetic number, because the mean of its divisors is an integer number (3591357075).

Almost surely, 2^28707490806 is an apocalyptic number.

28707490806 is an abundant number, since it is smaller than the sum of its proper divisors (28754222394).

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

28707490806 is a wasteful number, since it uses less digits than its factorization.

28707490806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894303.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 28707490806 in words is "twenty-eight billion, seven hundred seven million, four hundred ninety thousand, eight hundred six".