109177989918 has 16 divisors (see below), whose sum is σ = 219101225616. Its totient is φ = 36268455680.

The previous prime is 109177989887. The next prime is 109177989929. The reversal of 109177989918 is 819989771901.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31050003 + ... + 31053518.

It is an arithmetic number, because the mean of its divisors is an integer number (13693826601).

Almost surely, 2^109177989918 is an apocalyptic number.

109177989918 is an abundant number, since it is smaller than the sum of its proper divisors (109923235698).

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

109177989918 is a wasteful number, since it uses less digits than its factorization.

109177989918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62103819.

The product of its (nonzero) digits is 20575296, while the sum is 69.

The spelling of 109177989918 in words is "one hundred nine billion, one hundred seventy-seven million, nine hundred eighty-nine thousand, nine hundred eighteen".