38273115817 has 2 divisors, whose sum is σ = 38273115818. Its totient is φ = 38273115816.

The previous prime is 38273115757. The next prime is 38273115863. The reversal of 38273115817 is 71851137283.

It is an a-pointer prime, because the next prime (38273115863) can be obtained adding 38273115817 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30982688361 + 7290427456 = 176019^2 + 85384^2 .

It is a cyclic number.

It is not a de Polignac number, because 38273115817 - 2⁷ = 38273115689 is a prime.

It is not a weakly prime, because it can be changed into another prime (38273115887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19136557908 + 19136557909.

It is an arithmetic number, because the mean of its divisors is an integer number (19136557909).

Almost surely, 2^38273115817 is an apocalyptic number.

It is an amenable number.

38273115817 is a deficient number, since it is larger than the sum of its proper divisors (1).

38273115817 is an equidigital number, since it uses as much as digits as its factorization.

38273115817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 46.

The spelling of 38273115817 in words is "thirty-eight billion, two hundred seventy-three million, one hundred fifteen thousand, eight hundred seventeen".