39908144659 has 2 divisors, whose sum is σ = 39908144660. Its totient is φ = 39908144658.

The previous prime is 39908144581. The next prime is 39908144671. The reversal of 39908144659 is 95644180993.

It is a strong prime.

It is an emirp because it is prime and its reverse (95644180993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39908144659 - 2³⁵ = 5548406291 is a prime.

It is not a weakly prime, because it can be changed into another prime (39908144359) 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, 19954072329 + 19954072330.

It is an arithmetic number, because the mean of its divisors is an integer number (19954072330).

Almost surely, 2^39908144659 is an apocalyptic number.

39908144659 is a deficient number, since it is larger than the sum of its proper divisors (1).

39908144659 is an equidigital number, since it uses as much as digits as its factorization.

39908144659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 39908144659 in words is "thirty-nine billion, nine hundred eight million, one hundred forty-four thousand, six hundred fifty-nine".