13278980399 has 2 divisors, whose sum is σ = 13278980400. Its totient is φ = 13278980398.

The previous prime is 13278980389. The next prime is 13278980437. The reversal of 13278980399 is 99308987231.

It is a weak prime.

It is an emirp because it is prime and its reverse (99308987231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13278980399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13278980339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6639490199 + 6639490200.

It is an arithmetic number, because the mean of its divisors is an integer number (6639490200).

Almost surely, 2^13278980399 is an apocalyptic number.

13278980399 is a deficient number, since it is larger than the sum of its proper divisors (1).

13278980399 is an equidigital number, since it uses as much as digits as its factorization.

13278980399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The spelling of 13278980399 in words is "thirteen billion, two hundred seventy-eight million, nine hundred eighty thousand, three hundred ninety-nine".