14494416215921 has 2 divisors, whose sum is σ = 14494416215922. Its totient is φ = 14494416215920.

The previous prime is 14494416215887. The next prime is 14494416215941. The reversal of 14494416215921 is 12951261449441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12588580745521 + 1905835470400 = 3548039^2 + 1380520^2 .

It is a cyclic number.

It is not a de Polignac number, because 14494416215921 - 2²⁶ = 14494349107057 is a prime.

It is not a weakly prime, because it can be changed into another prime (14494416215941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7247208107960 + 7247208107961.

It is an arithmetic number, because the mean of its divisors is an integer number (7247208107961).

Almost surely, 2^{14494416215921} is an apocalyptic number.

It is an amenable number.

14494416215921 is a deficient number, since it is larger than the sum of its proper divisors (1).

14494416215921 is an equidigital number, since it uses as much as digits as its factorization.

14494416215921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 53.

The spelling of 14494416215921 in words is "fourteen trillion, four hundred ninety-four billion, four hundred sixteen million, two hundred fifteen thousand, nine hundred twenty-one".