13917249673 has 2 divisors, whose sum is σ = 13917249674. Its totient is φ = 13917249672.

The previous prime is 13917249659. The next prime is 13917249721. The reversal of 13917249673 is 37694271931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13245247744 + 672001929 = 115088^2 + 25923^2 .

It is a cyclic number.

It is not a de Polignac number, because 13917249673 - 2¹⁷ = 13917118601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13917249673.

It is not a weakly prime, because it can be changed into another prime (13917249623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6958624836 + 6958624837.

It is an arithmetic number, because the mean of its divisors is an integer number (6958624837).

Almost surely, 2^13917249673 is an apocalyptic number.

It is an amenable number.

13917249673 is a deficient number, since it is larger than the sum of its proper divisors (1).

13917249673 is an equidigital number, since it uses as much as digits as its factorization.

13917249673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 52.

The spelling of 13917249673 in words is "thirteen billion, nine hundred seventeen million, two hundred forty-nine thousand, six hundred seventy-three".