109988505553919 has 16 divisors (see below), whose sum is σ = 120054649335840. Its totient is φ = 100370013004800.

The previous prime is 109988505553907. The next prime is 109988505553939. The reversal of 109988505553919 is 919355505889901.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 109988505553919 - 2⁴ = 109988505553903 is a prime.

It is a super-2 number, since 2×109988505553919² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109988505553919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109988505553939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751019432 + ... + 751165869.

It is an arithmetic number, because the mean of its divisors is an integer number (7503415583490).

Almost surely, 2^{109988505553919} is an apocalyptic number.

109988505553919 is a deficient number, since it is larger than the sum of its proper divisors (10066143781921).

109988505553919 is a wasteful number, since it uses less digits than its factorization.

109988505553919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502185450.

The product of its (nonzero) digits is 787320000, while the sum is 77.

The spelling of 109988505553919 in words is "one hundred nine trillion, nine hundred eighty-eight billion, five hundred five million, five hundred fifty-three thousand, nine hundred nineteen".