13225884779 has 2 divisors, whose sum is σ = 13225884780. Its totient is φ = 13225884778.

The previous prime is 13225884761. The next prime is 13225884809. The reversal of 13225884779 is 97748852231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13225884779 - 2¹² = 13225880683 is a prime.

It is not a weakly prime, because it can be changed into another prime (13225884709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612942389 + 6612942390.

It is an arithmetic number, because the mean of its divisors is an integer number (6612942390).

Almost surely, 2^13225884779 is an apocalyptic number.

13225884779 is a deficient number, since it is larger than the sum of its proper divisors (1).

13225884779 is an equidigital number, since it uses as much as digits as its factorization.

13225884779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 56.

The spelling of 13225884779 in words is "thirteen billion, two hundred twenty-five million, eight hundred eighty-four thousand, seven hundred seventy-nine".