109881791692 has 24 divisors (see below), whose sum is σ = 201087161856. Its totient is φ = 52438637328.

The previous prime is 109881791689. The next prime is 109881791711. The reversal of 109881791692 is 296197188901.

It is a self number, because there is not a number n which added to its sum of digits gives 109881791692.

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 7 ways as a sum of consecutive naturals, for example, 1247218 + ... + 1332409.

It is an arithmetic number, because the mean of its divisors is an integer number (8378631744).

Almost surely, 2^109881791692 is an apocalyptic number.

It is an amenable number.

109881791692 is a deficient number, since it is larger than the sum of its proper divisors (91205370164).

109881791692 is a wasteful number, since it uses less digits than its factorization.

109881791692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580117 (or 2580115 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 61.

The spelling of 109881791692 in words is "one hundred nine billion, eight hundred eighty-one million, seven hundred ninety-one thousand, six hundred ninety-two".