28888887143017 has 16 divisors (see below), whose sum is σ = 32602299508800. Its totient is φ = 25356689794240.

The previous prime is 28888887142991. The next prime is 28888887143021. The reversal of 28888887143017 is 71034178888882.

It is a cyclic number.

It is not a de Polignac number, because 28888887143017 - 2⁷ = 28888887142889 is a prime.

It is a super-2 number, since 2×28888887143017² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28888887143047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26086734 + ... + 27171592.

It is an arithmetic number, because the mean of its divisors is an integer number (2037643719300).

Almost surely, 2^{28888887143017} is an apocalyptic number.

It is an amenable number.

28888887143017 is a deficient number, since it is larger than the sum of its proper divisors (3713412365783).

28888887143017 is a wasteful number, since it uses less digits than its factorization.

28888887143017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168376.

The product of its (nonzero) digits is 308281344, while the sum is 73.

The spelling of 28888887143017 in words is "twenty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-seven million, one hundred forty-three thousand, seventeen".