18124138746 has 128 divisors (see below), whose sum is σ = 47029248000. Its totient is φ = 5066418240.

The previous prime is 18124138687. The next prime is 18124138751. The reversal of 18124138746 is 64783142181.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8633605 + ... + 8635703.

It is an arithmetic number, because the mean of its divisors is an integer number (367416000).

Almost surely, 2^18124138746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18124138746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23514624000).

18124138746 is an abundant number, since it is smaller than the sum of its proper divisors (28905109254).

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

18124138746 is a wasteful number, since it uses less digits than its factorization.

18124138746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601 (or 2595 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The spelling of 18124138746 in words is "eighteen billion, one hundred twenty-four million, one hundred thirty-eight thousand, seven hundred forty-six".