13645202836 has 12 divisors (see below), whose sum is σ = 23939256628. Its totient is φ = 6805415232.

The previous prime is 13645202827. The next prime is 13645202899. The reversal of 13645202836 is 63820254631.

It can be written as a sum of positive squares in 2 ways, for example, as 12287722500 + 1357480336 = 110850^2 + 36844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294761 + ... + 4297936.

Almost surely, 2^13645202836 is an apocalyptic number.

It is an amenable number.

13645202836 is a deficient number, since it is larger than the sum of its proper divisors (10294053792).

13645202836 is a wasteful number, since it uses less digits than its factorization.

13645202836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8593098 (or 8593096 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 13645202836 in words is "thirteen billion, six hundred forty-five million, two hundred two thousand, eight hundred thirty-six".