18129373101 has 40 divisors (see below), whose sum is σ = 30967489344. Its totient is φ = 10354132800.

The previous prime is 18129373081. The next prime is 18129373117. The reversal of 18129373101 is 10137392181.

18129373101 is a `hidden beast` number, since 181 + 2 + 9 + 373 + 101 = 666.

It is not a de Polignac number, because 18129373101 - 2⁶ = 18129373037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18129373001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1213326 + ... + 1228176.

Almost surely, 2^18129373101 is an apocalyptic number.

It is an amenable number.

18129373101 is a deficient number, since it is larger than the sum of its proper divisors (12838116243).

18129373101 is a wasteful number, since it uses less digits than its factorization.

18129373101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17023 (or 17014 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 18129373101 in words is "eighteen billion, one hundred twenty-nine million, three hundred seventy-three thousand, one hundred one".