108690237871 has 4 divisors (see below), whose sum is σ = 108949642200. Its totient is φ = 108430833544.

The previous prime is 108690237853. The next prime is 108690237961. The reversal of 108690237871 is 178732096801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108690237871 - 2¹⁷ = 108690106799 is a prime.

It is a super-2 number, since 2×108690237871² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108690237811) 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, 129701536 + ... + 129702373.

It is an arithmetic number, because the mean of its divisors is an integer number (27237410550).

Almost surely, 2^108690237871 is an apocalyptic number.

108690237871 is a deficient number, since it is larger than the sum of its proper divisors (259404329).

108690237871 is an equidigital number, since it uses as much as digits as its factorization.

108690237871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259404328.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 108690237871 in words is "one hundred eight billion, six hundred ninety million, two hundred thirty-seven thousand, eight hundred seventy-one".