28888708990 has 16 divisors (see below), whose sum is σ = 52269108048. Its totient is φ = 11495609856.

The previous prime is 28888708967. The next prime is 28888709023. The reversal of 28888708990 is 9980788882.

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, 7482192 + ... + 7486051.

It is an arithmetic number, because the mean of its divisors is an integer number (3266819253).

Almost surely, 2^28888708990 is an apocalyptic number.

28888708990 is a deficient number, since it is larger than the sum of its proper divisors (23380399058).

28888708990 is a wasteful number, since it uses less digits than its factorization.

28888708990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14968443.

The product of its (nonzero) digits is 37158912, while the sum is 67.

The spelling of 28888708990 in words is "twenty-eight billion, eight hundred eighty-eight million, seven hundred eight thousand, nine hundred ninety".