14399679991 has 2 divisors, whose sum is σ = 14399679992. Its totient is φ = 14399679990.

The previous prime is 14399679971. The next prime is 14399680033. The reversal of 14399679991 is 19997699341.

It is a weak prime.

It is an emirp because it is prime and its reverse (19997699341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14399679991 - 2¹³ = 14399671799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14399679901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7199839995 + 7199839996.

It is an arithmetic number, because the mean of its divisors is an integer number (7199839996).

Almost surely, 2^14399679991 is an apocalyptic number.

14399679991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14399679991 is an equidigital number, since it uses as much as digits as its factorization.

14399679991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29760696, while the sum is 67.

The spelling of 14399679991 in words is "fourteen billion, three hundred ninety-nine million, six hundred seventy-nine thousand, nine hundred ninety-one".