14640549773909 has 2 divisors, whose sum is σ = 14640549773910. Its totient is φ = 14640549773908.

The previous prime is 14640549773881. The next prime is 14640549773989. The reversal of 14640549773909 is 90937794504641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9105366600100 + 5535183173809 = 3017510^2 + 2352697^2 .

It is a cyclic number.

It is not a de Polignac number, because 14640549773909 - 2⁴⁰ = 13541038146133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14640549773989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7320274886954 + 7320274886955.

It is an arithmetic number, because the mean of its divisors is an integer number (7320274886955).

Almost surely, 2^{14640549773909} is an apocalyptic number.

It is an amenable number.

14640549773909 is a deficient number, since it is larger than the sum of its proper divisors (1).

14640549773909 is an equidigital number, since it uses as much as digits as its factorization.

14640549773909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205752960, while the sum is 68.

The spelling of 14640549773909 in words is "fourteen trillion, six hundred forty billion, five hundred forty-nine million, seven hundred seventy-three thousand, nine hundred nine".