109881791698 has 32 divisors (see below), whose sum is σ = 193586621184. Its totient is φ = 45789406272.

The previous prime is 109881791689. The next prime is 109881791711. The reversal of 109881791698 is 896197188901.

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, 730536 + ... + 868012.

It is an arithmetic number, because the mean of its divisors is an integer number (6049581912).

Almost surely, 2^109881791698 is an apocalyptic number.

109881791698 is a deficient number, since it is larger than the sum of its proper divisors (83704829486).

109881791698 is a wasteful number, since it uses less digits than its factorization.

109881791698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139066.

The product of its (nonzero) digits is 15676416, while the sum is 67.

The spelling of 109881791698 in words is "one hundred nine billion, eight hundred eighty-one million, seven hundred ninety-one thousand, six hundred ninety-eight".