18344756142 has 48 divisors (see below), whose sum is σ = 41251850640. Its totient is φ = 5884776576.

The previous prime is 18344756123. The next prime is 18344756161. The reversal of 18344756142 is 24165744381.

18344756142 is a `hidden beast` number, since 1 + 8 + 3 + 4 + 47 + 561 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (18344756123) and next prime (18344756161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103018 + ... + 217490.

It is an arithmetic number, because the mean of its divisors is an integer number (859413555).

Almost surely, 2^18344756142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18344756142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20625925320).

18344756142 is an abundant number, since it is smaller than the sum of its proper divisors (22907094498).

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

18344756142 is a wasteful number, since it uses less digits than its factorization.

18344756142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114817 (or 114814 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 18344756142 in words is "eighteen billion, three hundred forty-four million, seven hundred fifty-six thousand, one hundred forty-two".