111539709853 has 8 divisors (see below), whose sum is σ = 131039659296. Its totient is φ = 93599756400.

The previous prime is 111539709829. The next prime is 111539709917. The reversal of 111539709853 is 358907935111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111539709853 is a prime.

It is a super-2 number, since 2×111539709853² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111539709853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111539709803) 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, 389998843 + ... + 389999128.

It is an arithmetic number, because the mean of its divisors is an integer number (16379957412).

Almost surely, 2^111539709853 is an apocalyptic number.

111539709853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111539709853 is a deficient number, since it is larger than the sum of its proper divisors (19499949443).

111539709853 is a wasteful number, since it uses less digits than its factorization.

111539709853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779997995.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The spelling of 111539709853 in words is "one hundred eleven billion, five hundred thirty-nine million, seven hundred nine thousand, eight hundred fifty-three".