28790490902 has 16 divisors (see below), whose sum is σ = 45162016992. Its totient is φ = 13739225280.

The previous prime is 28790490893. The next prime is 28790490919. The reversal of 28790490902 is 20909409782.

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, 663749 + ... + 705792.

It is an arithmetic number, because the mean of its divisors is an integer number (2822626062).

Almost surely, 2^28790490902 is an apocalyptic number.

28790490902 is a deficient number, since it is larger than the sum of its proper divisors (16371526090).

28790490902 is a wasteful number, since it uses less digits than its factorization.

28790490902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370023.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 28790490902 in words is "twenty-eight billion, seven hundred ninety million, four hundred ninety thousand, nine hundred two".