14212551517 has 2 divisors, whose sum is σ = 14212551518. Its totient is φ = 14212551516.

The previous prime is 14212551503. The next prime is 14212551541. The reversal of 14212551517 is 71515521241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8073202201 + 6139349316 = 89851^2 + 78354^2 .

It is a cyclic number.

It is not a de Polignac number, because 14212551517 - 2⁷ = 14212551389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14212581517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7106275758 + 7106275759.

It is an arithmetic number, because the mean of its divisors is an integer number (7106275759).

Almost surely, 2^14212551517 is an apocalyptic number.

It is an amenable number.

14212551517 is a deficient number, since it is larger than the sum of its proper divisors (1).

14212551517 is an equidigital number, since it uses as much as digits as its factorization.

14212551517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 34.

The spelling of 14212551517 in words is "fourteen billion, two hundred twelve million, five hundred fifty-one thousand, five hundred seventeen".