39912920959 has 2 divisors, whose sum is σ = 39912920960. Its totient is φ = 39912920958.

The previous prime is 39912920897. The next prime is 39912920963. The reversal of 39912920959 is 95902921993.

It is a strong prime.

It is an emirp because it is prime and its reverse (95902921993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39912920959 - 2²³ = 39904532351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39912920659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19956460479 + 19956460480.

It is an arithmetic number, because the mean of its divisors is an integer number (19956460480).

Almost surely, 2^39912920959 is an apocalyptic number.

39912920959 is a deficient number, since it is larger than the sum of its proper divisors (1).

39912920959 is an equidigital number, since it uses as much as digits as its factorization.

39912920959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3542940, while the sum is 58.

The spelling of 39912920959 in words is "thirty-nine billion, nine hundred twelve million, nine hundred twenty thousand, nine hundred fifty-nine".