38818726117 has 2 divisors, whose sum is σ = 38818726118. Its totient is φ = 38818726116.

The previous prime is 38818726103. The next prime is 38818726151. The reversal of 38818726117 is 71162781883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36128125476 + 2690600641 = 190074^2 + 51871^2 .

It is an emirp because it is prime and its reverse (71162781883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38818726117 - 2²³ = 38810337509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38818726187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19409363058 + 19409363059.

It is an arithmetic number, because the mean of its divisors is an integer number (19409363059).

Almost surely, 2^38818726117 is an apocalyptic number.

It is an amenable number.

38818726117 is a deficient number, since it is larger than the sum of its proper divisors (1).

38818726117 is an equidigital number, since it uses as much as digits as its factorization.

38818726117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 52.

The spelling of 38818726117 in words is "thirty-eight billion, eight hundred eighteen million, seven hundred twenty-six thousand, one hundred seventeen".