18336867037 has 8 divisors (see below), whose sum is σ = 18861590016. Its totient is φ = 17813677392.

The previous prime is 18336866993. The next prime is 18336867053. The reversal of 18336867037 is 73076863381.

It is a happy number.

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 18336867037 - 2²³ = 18328478429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18336865037) 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, 359053 + ... + 406930.

It is an arithmetic number, because the mean of its divisors is an integer number (2357698752).

Almost surely, 2^18336867037 is an apocalyptic number.

It is an amenable number.

18336867037 is a deficient number, since it is larger than the sum of its proper divisors (524722979).

18336867037 is an equidigital number, since it uses as much as digits as its factorization.

18336867037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766667.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 18336867037 in words is "eighteen billion, three hundred thirty-six million, eight hundred sixty-seven thousand, thirty-seven".