38869315997 has 2 divisors, whose sum is σ = 38869315998. Its totient is φ = 38869315996.

The previous prime is 38869315963. The next prime is 38869316021. The reversal of 38869315997 is 79951396883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34332754681 + 4536561316 = 185291^2 + 67354^2 .

It is a cyclic number.

It is not a de Polignac number, because 38869315997 - 2⁸ = 38869315741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38869315697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19434657998 + 19434657999.

It is an arithmetic number, because the mean of its divisors is an integer number (19434657999).

Almost surely, 2^38869315997 is an apocalyptic number.

It is an amenable number.

38869315997 is a deficient number, since it is larger than the sum of its proper divisors (1).

38869315997 is an equidigital number, since it uses as much as digits as its factorization.

38869315997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 68.

The spelling of 38869315997 in words is "thirty-eight billion, eight hundred sixty-nine million, three hundred fifteen thousand, nine hundred ninety-seven".