14701906721 has 2 divisors, whose sum is σ = 14701906722. Its totient is φ = 14701906720.

The previous prime is 14701906669. The next prime is 14701906783. The reversal of 14701906721 is 12760910741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12519148321 + 2182758400 = 111889^2 + 46720^2 .

It is a cyclic number.

It is not a de Polignac number, because 14701906721 - 2⁶ = 14701906657 is a prime.

It is a super-2 number, since 2×14701906721² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14701956721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7350953360 + 7350953361.

It is an arithmetic number, because the mean of its divisors is an integer number (7350953361).

Almost surely, 2^14701906721 is an apocalyptic number.

It is an amenable number.

14701906721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14701906721 is an equidigital number, since it uses as much as digits as its factorization.

14701906721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 14701906721 in words is "fourteen billion, seven hundred one million, nine hundred six thousand, seven hundred twenty-one".