13231698461 has 16 divisors (see below), whose sum is σ = 13443658800. Its totient is φ = 13021751808.

The previous prime is 13231698457. The next prime is 13231698481. The reversal of 13231698461 is 16489613231.

13231698461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 466992100 + 12764706361 = 21610^2 + 112981^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231698461 - 2² = 13231698457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231698481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13271015 + ... + 13272011.

It is an arithmetic number, because the mean of its divisors is an integer number (840228675).

Almost surely, 2^13231698461 is an apocalyptic number.

It is an amenable number.

13231698461 is a deficient number, since it is larger than the sum of its proper divisors (211960339).

13231698461 is a wasteful number, since it uses less digits than its factorization.

13231698461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808.

The product of its digits is 186624, while the sum is 44.

The spelling of 13231698461 in words is "thirteen billion, two hundred thirty-one million, six hundred ninety-eight thousand, four hundred sixty-one".