38218336907 has 2 divisors, whose sum is σ = 38218336908. Its totient is φ = 38218336906.

The previous prime is 38218336889. The next prime is 38218336921. The reversal of 38218336907 is 70963381283.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38218336907 - 2⁶ = 38218336843 is a prime.

It is not a weakly prime, because it can be changed into another prime (38218336987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19109168453 + 19109168454.

It is an arithmetic number, because the mean of its divisors is an integer number (19109168454).

Almost surely, 2^38218336907 is an apocalyptic number.

38218336907 is a deficient number, since it is larger than the sum of its proper divisors (1).

38218336907 is an equidigital number, since it uses as much as digits as its factorization.

38218336907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 38218336907 in words is "thirty-eight billion, two hundred eighteen million, three hundred thirty-six thousand, nine hundred seven".