13445489579 has 2 divisors, whose sum is σ = 13445489580. Its totient is φ = 13445489578.

The previous prime is 13445489537. The next prime is 13445489641. The reversal of 13445489579 is 97598454431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13445489579 is a prime.

It is not a weakly prime, because it can be changed into another prime (13445489509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722744789 + 6722744790.

It is an arithmetic number, because the mean of its divisors is an integer number (6722744790).

Almost surely, 2^13445489579 is an apocalyptic number.

13445489579 is a deficient number, since it is larger than the sum of its proper divisors (1).

13445489579 is an equidigital number, since it uses as much as digits as its factorization.

13445489579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 59.

The spelling of 13445489579 in words is "thirteen billion, four hundred forty-five million, four hundred eighty-nine thousand, five hundred seventy-nine".