13403563641 has 16 divisors (see below), whose sum is σ = 21384603520. Its totient is φ = 8248346640.

The previous prime is 13403563637. The next prime is 13403563673. The reversal of 13403563641 is 14636530431.

13403563641 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 3 + 5 + 6 + 3 + 641 = 666.

It is not a de Polignac number, because 13403563641 - 2² = 13403563637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13403563596 and 13403563605.

It is not an unprimeable number, because it can be changed into a prime (13403563601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19093045 + ... + 19093746.

It is an arithmetic number, because the mean of its divisors is an integer number (1336537720).

Almost surely, 2^13403563641 is an apocalyptic number.

It is an amenable number.

13403563641 is a deficient number, since it is larger than the sum of its proper divisors (7981039879).

13403563641 is a wasteful number, since it uses less digits than its factorization.

13403563641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38186813 (or 38186807 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 13403563641 in words is "thirteen billion, four hundred three million, five hundred sixty-three thousand, six hundred forty-one".