14564046509 has 2 divisors, whose sum is σ = 14564046510. Its totient is φ = 14564046508.

The previous prime is 14564046491. The next prime is 14564046547. The reversal of 14564046509 is 90564046541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9800010025 + 4764036484 = 98995^2 + 69022^2 .

It is an emirp because it is prime and its reverse (90564046541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14564046509 - 2¹² = 14564042413 is a prime.

It is a super-2 number, since 2×14564046509² (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 14564046509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14564046569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7282023254 + 7282023255.

It is an arithmetic number, because the mean of its divisors is an integer number (7282023255).

Almost surely, 2^14564046509 is an apocalyptic number.

It is an amenable number.

14564046509 is a deficient number, since it is larger than the sum of its proper divisors (1).

14564046509 is an equidigital number, since it uses as much as digits as its factorization.

14564046509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 14564046509 in words is "fourteen billion, five hundred sixty-four million, forty-six thousand, five hundred nine".