13032463681 has 4 divisors (see below), whose sum is σ = 13147795332. Its totient is φ = 12917132032.

The previous prime is 13032463579. The next prime is 13032463699. The reversal of 13032463681 is 18636423031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18636423031 = 79 ⋅235904089.

It can be written as a sum of positive squares in 2 ways, for example, as 6003150400 + 7029313281 = 77480^2 + 83841^2 .

It is a cyclic number.

It is not a de Polignac number, because 13032463681 - 2¹¹ = 13032461633 is a prime.

It is a super-2 number, since 2×13032463681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13032463681.

It is not an unprimeable number, because it can be changed into a prime (13032463781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57665656 + ... + 57665881.

It is an arithmetic number, because the mean of its divisors is an integer number (3286948833).

Almost surely, 2^13032463681 is an apocalyptic number.

It is an amenable number.

13032463681 is a deficient number, since it is larger than the sum of its proper divisors (115331651).

13032463681 is a wasteful number, since it uses less digits than its factorization.

13032463681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115331650.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 13032463681 in words is "thirteen billion, thirty-two million, four hundred sixty-three thousand, six hundred eighty-one".