13546817969 has 2 divisors, whose sum is σ = 13546817970. Its totient is φ = 13546817968.

The previous prime is 13546817959. The next prime is 13546818007. The reversal of 13546817969 is 96971864531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7278137344 + 6268680625 = 85312^2 + 79175^2 .

It is a cyclic number.

It is not a de Polignac number, because 13546817969 - 2⁴ = 13546817953 is a prime.

It is a super-2 number, since 2×13546817969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13546817939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6773408984 + 6773408985.

It is an arithmetic number, because the mean of its divisors is an integer number (6773408985).

Almost surely, 2^13546817969 is an apocalyptic number.

It is an amenable number.

13546817969 is a deficient number, since it is larger than the sum of its proper divisors (1).

13546817969 is an equidigital number, since it uses as much as digits as its factorization.

13546817969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 59.

The spelling of 13546817969 in words is "thirteen billion, five hundred forty-six million, eight hundred seventeen thousand, nine hundred sixty-nine".