28888730028886 has 64 divisors (see below), whose sum is σ = 54431456647680. Its totient is φ = 11195039496960.

The previous prime is 28888730028853. The next prime is 28888730028913. The reversal of 28888730028886 is 68882003788882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4434855 + ... + 8800306.

It is an arithmetic number, because the mean of its divisors is an integer number (850491510120).

Almost surely, 2^{28888730028886} is an apocalyptic number.

28888730028886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28888730028886 is a deficient number, since it is larger than the sum of its proper divisors (25542726618794).

28888730028886 is a wasteful number, since it uses less digits than its factorization.

28888730028886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13235429.

The product of its (nonzero) digits is 1056964608, while the sum is 76.

The spelling of 28888730028886 in words is "twenty-eight trillion, eight hundred eighty-eight billion, seven hundred thirty million, twenty-eight thousand, eight hundred eighty-six".