18738233233627 has 2 divisors, whose sum is σ = 18738233233628. Its totient is φ = 18738233233626.

The previous prime is 18738233233579. The next prime is 18738233233663. The reversal of 18738233233627 is 72633233283781.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18738233233627 - 2¹⁵ = 18738233200859 is a prime.

It is a super-2 number, since 2×18738233233627² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18738233233927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9369116616813 + 9369116616814.

It is an arithmetic number, because the mean of its divisors is an integer number (9369116616814).

Almost surely, 2^{18738233233627} is an apocalyptic number.

18738233233627 is a deficient number, since it is larger than the sum of its proper divisors (1).

18738233233627 is an equidigital number, since it uses as much as digits as its factorization.

18738233233627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 58.

The spelling of 18738233233627 in words is "eighteen trillion, seven hundred thirty-eight billion, two hundred thirty-three million, two hundred thirty-three thousand, six hundred twenty-seven".