19109091102 has 16 divisors (see below), whose sum is σ = 38439098640. Its totient is φ = 6332877632.

The previous prime is 19109091073. The next prime is 19109091107. The reversal of 19109091102 is 20119090191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19109091107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9203727 + ... + 9205802.

It is an arithmetic number, because the mean of its divisors is an integer number (2402443665).

Almost surely, 2^19109091102 is an apocalyptic number.

19109091102 is an abundant number, since it is smaller than the sum of its proper divisors (19330007538).

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

19109091102 is a wasteful number, since it uses less digits than its factorization.

19109091102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18409707.

The product of its (nonzero) digits is 1458, while the sum is 33.

The spelling of 19109091102 in words is "nineteen billion, one hundred nine million, ninety-one thousand, one hundred two".