14693138579521 has 2 divisors, whose sum is σ = 14693138579522. Its totient is φ = 14693138579520.

The previous prime is 14693138579401. The next prime is 14693138579591. The reversal of 14693138579521 is 12597583139641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11270046553921 + 3423092025600 = 3357089^2 + 1850160^2 .

It is a cyclic number.

It is not a de Polignac number, because 14693138579521 - 2⁷ = 14693138579393 is a prime.

It is not a weakly prime, because it can be changed into another prime (14693138579591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7346569289760 + 7346569289761.

It is an arithmetic number, because the mean of its divisors is an integer number (7346569289761).

Almost surely, 2^{14693138579521} is an apocalyptic number.

It is an amenable number.

14693138579521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14693138579521 is an equidigital number, since it uses as much as digits as its factorization.

14693138579521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48988800, while the sum is 64.

The spelling of 14693138579521 in words is "fourteen trillion, six hundred ninety-three billion, one hundred thirty-eight million, five hundred seventy-nine thousand, five hundred twenty-one".