28388613310075 has 12 divisors (see below), whose sum is σ = 35203532362960. Its totient is φ = 22709824932960.

The previous prime is 28388613310069. The next prime is 28388613310193. The reversal of 28388613310075 is 57001331688382.

It is not a de Polignac number, because 28388613310075 - 2¹³ = 28388613301883 is a prime.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28388613309998 and 28388613310025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26099244 + ... + 27165193.

Almost surely, 2^{28388613310075} is an apocalyptic number.

28388613310075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28388613310075 is a deficient number, since it is larger than the sum of its proper divisors (6814919052885).

28388613310075 is a wasteful number, since it uses less digits than its factorization.

28388613310075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53285766 (or 53285761 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 28388613310075 in words is "twenty-eight trillion, three hundred eighty-eight billion, six hundred thirteen million, three hundred ten thousand, seventy-five".