18081942037 has 8 divisors (see below), whose sum is σ = 18474508800. Its totient is φ = 17689702224.

The previous prime is 18081942031. The next prime is 18081942049. The reversal of 18081942037 is 73024918081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18081942037 - 2⁷ = 18081941909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18081941984 and 18081942002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18081942031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31764 + ... + 192802.

It is an arithmetic number, because the mean of its divisors is an integer number (2309313600).

Almost surely, 2^18081942037 is an apocalyptic number.

It is an amenable number.

18081942037 is a deficient number, since it is larger than the sum of its proper divisors (392566763).

18081942037 is a wasteful number, since it uses less digits than its factorization.

18081942037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163475.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 18081942037 in words is "eighteen billion, eighty-one million, nine hundred forty-two thousand, thirty-seven".