108287800639 has 4 divisors (see below), whose sum is σ = 112021862760. Its totient is φ = 104553738520.

The previous prime is 108287800637. The next prime is 108287800657. The reversal of 108287800639 is 936008782801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936008782801 = 971 ⋅963963731.

It is a cyclic number.

It is not a de Polignac number, because 108287800639 - 2¹ = 108287800637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108287800633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867031017 + ... + 1867031074.

It is an arithmetic number, because the mean of its divisors is an integer number (28005465690).

Almost surely, 2^108287800639 is an apocalyptic number.

108287800639 is a deficient number, since it is larger than the sum of its proper divisors (3734062121).

108287800639 is an equidigital number, since it uses as much as digits as its factorization.

108287800639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734062120.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 108287800639 in words is "one hundred eight billion, two hundred eighty-seven million, eight hundred thousand, six hundred thirty-nine".