28444834894902 has 16 divisors (see below), whose sum is σ = 57476161232112. Its totient is φ = 9383863057920.

The previous prime is 28444834894897. The next prime is 28444834894913. The reversal of 28444834894902 is 20949843844482.

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, 24437142799 + ... + 24437143962.

It is an arithmetic number, because the mean of its divisors is an integer number (3592260077007).

Almost surely, 2^{28444834894902} is an apocalyptic number.

28444834894902 is an abundant number, since it is smaller than the sum of its proper divisors (29031326337210).

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

28444834894902 is a wasteful number, since it uses less digits than its factorization.

28444834894902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48874286863.

The product of its (nonzero) digits is 509607936, while the sum is 69.

The spelling of 28444834894902 in words is "twenty-eight trillion, four hundred forty-four billion, eight hundred thirty-four million, eight hundred ninety-four thousand, nine hundred two".