39646348117 has 2 divisors, whose sum is σ = 39646348118. Its totient is φ = 39646348116.

The previous prime is 39646348097. The next prime is 39646348121. The reversal of 39646348117 is 71184364693.

39646348117 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., 37403946801 + 2242401316 = 193401^2 + 47354^2 .

It is a cyclic number.

It is not a de Polignac number, because 39646348117 - 2²⁷ = 39512130389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39646343117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19823174058 + 19823174059.

It is an arithmetic number, because the mean of its divisors is an integer number (19823174059).

Almost surely, 2^39646348117 is an apocalyptic number.

It is an amenable number.

39646348117 is a deficient number, since it is larger than the sum of its proper divisors (1).

39646348117 is an equidigital number, since it uses as much as digits as its factorization.

39646348117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 52.

The spelling of 39646348117 in words is "thirty-nine billion, six hundred forty-six million, three hundred forty-eight thousand, one hundred seventeen".