39244935641 has 2 divisors, whose sum is σ = 39244935642. Its totient is φ = 39244935640.

The previous prime is 39244935601. The next prime is 39244935649. The reversal of 39244935641 is 14653944293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39237667225 + 7268416 = 198085^2 + 2696^2 .

It is a cyclic number.

It is not a de Polignac number, because 39244935641 - 2³⁰ = 38171193817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39244935641.

It is not a weakly prime, because it can be changed into another prime (39244935649) 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, 19622467820 + 19622467821.

It is an arithmetic number, because the mean of its divisors is an integer number (19622467821).

Almost surely, 2^39244935641 is an apocalyptic number.

It is an amenable number.

39244935641 is a deficient number, since it is larger than the sum of its proper divisors (1).

39244935641 is an equidigital number, since it uses as much as digits as its factorization.

39244935641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 50.

The spelling of 39244935641 in words is "thirty-nine billion, two hundred forty-four million, nine hundred thirty-five thousand, six hundred forty-one".