13909211219 has 2 divisors, whose sum is σ = 13909211220. Its totient is φ = 13909211218.

The previous prime is 13909211209. The next prime is 13909211321. The reversal of 13909211219 is 91211290931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13909211219 - 2⁸ = 13909210963 is a prime.

It is a super-2 number, since 2×13909211219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13909211209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6954605609 + 6954605610.

It is an arithmetic number, because the mean of its divisors is an integer number (6954605610).

Almost surely, 2^13909211219 is an apocalyptic number.

13909211219 is a deficient number, since it is larger than the sum of its proper divisors (1).

13909211219 is an equidigital number, since it uses as much as digits as its factorization.

13909211219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 13909211219 in words is "thirteen billion, nine hundred nine million, two hundred eleven thousand, two hundred nineteen".