13489927469 has 2 divisors, whose sum is σ = 13489927470. Its totient is φ = 13489927468.

The previous prime is 13489927403. The next prime is 13489927483. The reversal of 13489927469 is 96472998431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7256824969 + 6233102500 = 85187^2 + 78950^2 .

It is a cyclic number.

It is not a de Polignac number, because 13489927469 - 2²⁴ = 13473150253 is a prime.

It is a super-2 number, since 2×13489927469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13489927369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6744963734 + 6744963735.

It is an arithmetic number, because the mean of its divisors is an integer number (6744963735).

Almost surely, 2^13489927469 is an apocalyptic number.

It is an amenable number.

13489927469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13489927469 is an equidigital number, since it uses as much as digits as its factorization.

13489927469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 62.

The spelling of 13489927469 in words is "thirteen billion, four hundred eighty-nine million, nine hundred twenty-seven thousand, four hundred sixty-nine".