14221579679 has 2 divisors, whose sum is σ = 14221579680. Its totient is φ = 14221579678.

The previous prime is 14221579651. The next prime is 14221579693. The reversal of 14221579679 is 97697512241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14221579679 - 2¹⁶ = 14221514143 is a prime.

It is a super-2 number, since 2×14221579679² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14221579679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14221579579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110789839 + 7110789840.

It is an arithmetic number, because the mean of its divisors is an integer number (7110789840).

Almost surely, 2^14221579679 is an apocalyptic number.

14221579679 is a deficient number, since it is larger than the sum of its proper divisors (1).

14221579679 is an equidigital number, since it uses as much as digits as its factorization.

14221579679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The spelling of 14221579679 in words is "fourteen billion, two hundred twenty-one million, five hundred seventy-nine thousand, six hundred seventy-nine".