28388363276057 has 24 divisors (see below), whose sum is σ = 30557126620800. Its totient is φ = 26363922713856.

The previous prime is 28388363276041. The next prime is 28388363276059. The reversal of 28388363276057 is 75067236388382.

It is not a de Polignac number, because 28388363276057 - 2⁴ = 28388363276041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28388363276059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36579383 + ... + 37347395.

It is an arithmetic number, because the mean of its divisors is an integer number (1273213609200).

Almost surely, 2^{28388363276057} is an apocalyptic number.

It is an amenable number.

28388363276057 is a deficient number, since it is larger than the sum of its proper divisors (2168763344743).

28388363276057 is a wasteful number, since it uses less digits than its factorization.

28388363276057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769745 (or 769728 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 68.

The spelling of 28388363276057 in words is "twenty-eight trillion, three hundred eighty-eight billion, three hundred sixty-three million, two hundred seventy-six thousand, fifty-seven".