14080779721 has 2 divisors, whose sum is σ = 14080779722. Its totient is φ = 14080779720.

The previous prime is 14080779719. The next prime is 14080779763. The reversal of 14080779721 is 12797708041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13792153600 + 288626121 = 117440^2 + 16989^2 .

It is a cyclic number.

It is not a de Polignac number, because 14080779721 - 2¹ = 14080779719 is a prime.

Together with 14080779719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (14080779701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7040389860 + 7040389861.

It is an arithmetic number, because the mean of its divisors is an integer number (7040389861).

Almost surely, 2^14080779721 is an apocalyptic number.

It is an amenable number.

14080779721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14080779721 is an equidigital number, since it uses as much as digits as its factorization.

14080779721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 14080779721 in words is "fourteen billion, eighty million, seven hundred seventy-nine thousand, seven hundred twenty-one".