38392929397 has 2 divisors, whose sum is σ = 38392929398. Its totient is φ = 38392929396.

The previous prime is 38392929359. The next prime is 38392929409. The reversal of 38392929397 is 79392929383.

38392929397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26242056036 + 12150873361 = 161994^2 + 110231^2 .

It is a cyclic number.

It is not a de Polignac number, because 38392929397 - 2¹⁹ = 38392405109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38392929797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19196464698 + 19196464699.

It is an arithmetic number, because the mean of its divisors is an integer number (19196464699).

Almost surely, 2^38392929397 is an apocalyptic number.

It is an amenable number.

38392929397 is a deficient number, since it is larger than the sum of its proper divisors (1).

38392929397 is an equidigital number, since it uses as much as digits as its factorization.

38392929397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39680928, while the sum is 64.

The spelling of 38392929397 in words is "thirty-eight billion, three hundred ninety-two million, nine hundred twenty-nine thousand, three hundred ninety-seven".