38018700623 has 2 divisors, whose sum is σ = 38018700624. Its totient is φ = 38018700622.

The previous prime is 38018700523. The next prime is 38018700721. The reversal of 38018700623 is 32600781083.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38018700623 - 2⁸ = 38018700367 is a prime.

It is a super-2 number, since 2×38018700623² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38018700323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19009350311 + 19009350312.

It is an arithmetic number, because the mean of its divisors is an integer number (19009350312).

Almost surely, 2^38018700623 is an apocalyptic number.

38018700623 is a deficient number, since it is larger than the sum of its proper divisors (1).

38018700623 is an equidigital number, since it uses as much as digits as its factorization.

38018700623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 38018700623 in words is "thirty-eight billion, eighteen million, seven hundred thousand, six hundred twenty-three".