44111111142 has 96 divisors (see below), whose sum is σ = 108634521600. Its totient is φ = 11885493312.

The previous prime is 44111111117. The next prime is 44111111167. The reversal of 44111111142 is 24111111144.

It is an interprime number because it is at equal distance from previous prime (44111111117) and next prime (44111111167).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 306459 + ... + 426777.

It is an arithmetic number, because the mean of its divisors is an integer number (1131609600).

Almost surely, 2^44111111142 is an apocalyptic number.

44111111142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 44111111142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54317260800).

44111111142 is an abundant number, since it is smaller than the sum of its proper divisors (64523410458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44111111142 is a wasteful number, since it uses less digits than its factorization.

44111111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120410 (or 120403 counting only the distinct ones).

The product of its digits is 128, while the sum is 21.

Adding to 44111111142 its reverse (24111111144), we get a palindrome (68222222286).

The spelling of 44111111142 in words is "forty-four billion, one hundred eleven million, one hundred eleven thousand, one hundred forty-two".