39937091017 has 2 divisors, whose sum is σ = 39937091018. Its totient is φ = 39937091016.

The previous prime is 39937090979. The next prime is 39937091023. The reversal of 39937091017 is 71019073993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38691283401 + 1245807616 = 196701^2 + 35296^2 .

It is a cyclic number.

It is not a de Polignac number, because 39937091017 - 2²³ = 39928702409 is a prime.

It is not a weakly prime, because it can be changed into another prime (39937091057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19968545508 + 19968545509.

It is an arithmetic number, because the mean of its divisors is an integer number (19968545509).

Almost surely, 2^39937091017 is an apocalyptic number.

It is an amenable number.

39937091017 is a deficient number, since it is larger than the sum of its proper divisors (1).

39937091017 is an equidigital number, since it uses as much as digits as its factorization.

39937091017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 321489, while the sum is 49.

The spelling of 39937091017 in words is "thirty-nine billion, nine hundred thirty-seven million, ninety-one thousand, seventeen".