38608039693 has 2 divisors, whose sum is σ = 38608039694. Its totient is φ = 38608039692.

The previous prime is 38608039681. The next prime is 38608039699. The reversal of 38608039693 is 39693080683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21363622569 + 17244417124 = 146163^2 + 131318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38608039693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38608039699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19304019846 + 19304019847.

It is an arithmetic number, because the mean of its divisors is an integer number (19304019847).

Almost surely, 2^38608039693 is an apocalyptic number.

It is an amenable number.

38608039693 is a deficient number, since it is larger than the sum of its proper divisors (1).

38608039693 is an equidigital number, since it uses as much as digits as its factorization.

38608039693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 38608039693 in words is "thirty-eight billion, six hundred eight million, thirty-nine thousand, six hundred ninety-three".