13897912227919 has 2 divisors, whose sum is σ = 13897912227920. Its totient is φ = 13897912227918.

The previous prime is 13897912227833. The next prime is 13897912227929. The reversal of 13897912227919 is 91972221979831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13897912227919 - 2²⁹ = 13897375357007 is a prime.

It is a super-2 number, since 2×13897912227919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13897912227929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948956113959 + 6948956113960.

It is an arithmetic number, because the mean of its divisors is an integer number (6948956113960).

Almost surely, 2^{13897912227919} is an apocalyptic number.

13897912227919 is a deficient number, since it is larger than the sum of its proper divisors (1).

13897912227919 is an equidigital number, since it uses as much as digits as its factorization.

13897912227919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 70.

The spelling of 13897912227919 in words is "thirteen trillion, eight hundred ninety-seven billion, nine hundred twelve million, two hundred twenty-seven thousand, nine hundred nineteen".