38929916690317 has 2 divisors, whose sum is σ = 38929916690318. Its totient is φ = 38929916690316.

The previous prime is 38929916690221. The next prime is 38929916690321. The reversal of 38929916690317 is 71309661992983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32470155631081 + 6459761059236 = 5698259^2 + 2541606^2 .

It is a cyclic number.

It is not a de Polignac number, because 38929916690317 - 2²³ = 38929908301709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38929916690317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38929916690347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19464958345158 + 19464958345159.

It is an arithmetic number, because the mean of its divisors is an integer number (19464958345159).

Almost surely, 2^{38929916690317} is an apocalyptic number.

It is an amenable number.

38929916690317 is a deficient number, since it is larger than the sum of its proper divisors (1).

38929916690317 is an equidigital number, since it uses as much as digits as its factorization.

38929916690317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238085568, while the sum is 73.

The spelling of 38929916690317 in words is "thirty-eight trillion, nine hundred twenty-nine billion, nine hundred sixteen million, six hundred ninety thousand, three hundred seventeen".