39968195999 has 2 divisors, whose sum is σ = 39968196000. Its totient is φ = 39968195998.

The previous prime is 39968195989. The next prime is 39968196007. The reversal of 39968195999 is 99959186993.

39968195999 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 is a cyclic number.

It is not a de Polignac number, because 39968195999 - 2²⁴ = 39951418783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39968195989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19984097999 + 19984098000.

It is an arithmetic number, because the mean of its divisors is an integer number (19984098000).

Almost surely, 2^39968195999 is an apocalyptic number.

39968195999 is a deficient number, since it is larger than the sum of its proper divisors (1).

39968195999 is an equidigital number, since it uses as much as digits as its factorization.

39968195999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 382637520, while the sum is 77.

The spelling of 39968195999 in words is "thirty-nine billion, nine hundred sixty-eight million, one hundred ninety-five thousand, nine hundred ninety-nine".