13281296697 has 12 divisors (see below), whose sum is σ = 19185668580. Its totient is φ = 8853471648.

The previous prime is 13281296671. The next prime is 13281296711. The reversal of 13281296697 is 79669218231.

13281296697 is a `hidden beast` number, since 13 + 281 + 296 + 69 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 225720576 + 13055576121 = 15024^2 + 114261^2 .

It is not a de Polignac number, because 13281296697 - 2¹² = 13281292601 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13281296297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70179 + ... + 177447.

It is an arithmetic number, because the mean of its divisors is an integer number (1598805715).

Almost surely, 2^13281296697 is an apocalyptic number.

It is an amenable number.

13281296697 is a deficient number, since it is larger than the sum of its proper divisors (5904371883).

13281296697 is a wasteful number, since it uses less digits than its factorization.

13281296697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121032 (or 121029 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 13281296697 in words is "thirteen billion, two hundred eighty-one million, two hundred ninety-six thousand, six hundred ninety-seven".