28018867383 has 96 divisors (see below), whose sum is σ = 45881611776. Its totient is φ = 16984556928.

The previous prime is 28018867321. The next prime is 28018867397. The reversal of 28018867383 is 38376881082.

28018867383 is a `hidden beast` number, since 2 + 80 + 188 + 6 + 7 + 383 = 666.

It is not a de Polignac number, because 28018867383 - 2⁶ = 28018867319 is a prime.

It is a super-2 number, since 2×28018867383² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28018867183) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 91266516 + ... + 91266822.

It is an arithmetic number, because the mean of its divisors is an integer number (477933456).

Almost surely, 2^28018867383 is an apocalyptic number.

28018867383 is a deficient number, since it is larger than the sum of its proper divisors (17862744393).

28018867383 is a wasteful number, since it uses less digits than its factorization.

28018867383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 28018867383 in words is "twenty-eight billion, eighteen million, eight hundred sixty-seven thousand, three hundred eighty-three".