13399519447 has 2 divisors, whose sum is σ = 13399519448. Its totient is φ = 13399519446.

The previous prime is 13399519421. The next prime is 13399519499. The reversal of 13399519447 is 74491599331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13399519447 - 2⁷ = 13399519319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13399519417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6699759723 + 6699759724.

It is an arithmetic number, because the mean of its divisors is an integer number (6699759724).

Almost surely, 2^13399519447 is an apocalyptic number.

13399519447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13399519447 is an equidigital number, since it uses as much as digits as its factorization.

13399519447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 55.

The spelling of 13399519447 in words is "thirteen billion, three hundred ninety-nine million, five hundred nineteen thousand, four hundred forty-seven".