108537433690 has 32 divisors (see below), whose sum is σ = 235028430720. Its totient is φ = 35254263744.

The previous prime is 108537433643. The next prime is 108537433769. The reversal of 108537433690 is 96334735801.

It is a super-2 number, since 2×108537433690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40802217 + ... + 40804876.

It is an arithmetic number, because the mean of its divisors is an integer number (7344638460).

Almost surely, 2^108537433690 is an apocalyptic number.

108537433690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108537433690 is an abundant number, since it is smaller than the sum of its proper divisors (126490997030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108537433690 is a wasteful number, since it uses less digits than its factorization.

108537433690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81607126.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 108537433690 in words is "one hundred eight billion, five hundred thirty-seven million, four hundred thirty-three thousand, six hundred ninety".