111539734085 has 32 divisors (see below), whose sum is σ = 144520225920. Its totient is φ = 82152979200.

The previous prime is 111539734067. The next prime is 111539734087. The reversal of 111539734085 is 580437935111.

It is not a de Polignac number, because 111539734085 - 2⁸ = 111539733829 is a prime.

It is a super-2 number, since 2×111539734085² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111539734087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68893406 + ... + 68895024.

It is an arithmetic number, because the mean of its divisors is an integer number (4516257060).

Almost surely, 2^111539734085 is an apocalyptic number.

It is an amenable number.

111539734085 is a deficient number, since it is larger than the sum of its proper divisors (32980491835).

111539734085 is a wasteful number, since it uses less digits than its factorization.

111539734085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 111539734085 in words is "one hundred eleven billion, five hundred thirty-nine million, seven hundred thirty-four thousand, eighty-five".