13449890378927 has 2 divisors, whose sum is σ = 13449890378928. Its totient is φ = 13449890378926.

The previous prime is 13449890378851. The next prime is 13449890378929. The reversal of 13449890378927 is 72987309894431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13449890378927 - 2²⁶ = 13449823270063 is a prime.

Together with 13449890378929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13449890378929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724945189463 + 6724945189464.

It is an arithmetic number, because the mean of its divisors is an integer number (6724945189464).

Almost surely, 2^{13449890378927} is an apocalyptic number.

13449890378927 is a deficient number, since it is larger than the sum of its proper divisors (1).

13449890378927 is an equidigital number, since it uses as much as digits as its factorization.

13449890378927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658409472, while the sum is 74.

The spelling of 13449890378927 in words is "thirteen trillion, four hundred forty-nine billion, eight hundred ninety million, three hundred seventy-eight thousand, nine hundred twenty-seven".