13451489617 has 2 divisors, whose sum is σ = 13451489618. Its totient is φ = 13451489616.

The previous prime is 13451489573. The next prime is 13451489657. The reversal of 13451489617 is 71698415431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8700971841 + 4750517776 = 93279^2 + 68924^2 .

It is a cyclic number.

It is not a de Polignac number, because 13451489617 - 2¹⁹ = 13450965329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13451489657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6725744808 + 6725744809.

It is an arithmetic number, because the mean of its divisors is an integer number (6725744809).

Almost surely, 2^13451489617 is an apocalyptic number.

It is an amenable number.

13451489617 is a deficient number, since it is larger than the sum of its proper divisors (1).

13451489617 is an equidigital number, since it uses as much as digits as its factorization.

13451489617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 49.

The spelling of 13451489617 in words is "thirteen billion, four hundred fifty-one million, four hundred eighty-nine thousand, six hundred seventeen".