18041670381 has 96 divisors (see below), whose sum is σ = 30505646080. Its totient is φ = 9258416640.

The previous prime is 18041670331. The next prime is 18041670401. The reversal of 18041670381 is 18307614081.

It is not a de Polignac number, because 18041670381 - 2¹⁰ = 18041669357 is a prime.

It is a super-2 number, since 2×18041670381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18041670331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24816240 + ... + 24816966.

Almost surely, 2^18041670381 is an apocalyptic number.

It is an amenable number.

18041670381 is a deficient number, since it is larger than the sum of its proper divisors (12463975699).

18041670381 is a wasteful number, since it uses less digits than its factorization.

18041670381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 18041670381 in words is "eighteen billion, forty-one million, six hundred seventy thousand, three hundred eighty-one".