13646435644 has 24 divisors (see below), whose sum is σ = 24144785280. Its totient is φ = 6748300464.

The previous prime is 13646435633. The next prime is 13646435651. The reversal of 13646435644 is 44653464631.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13646435594 and 13646435603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99567 + ... + 192889.

It is an arithmetic number, because the mean of its divisors is an integer number (1006032720).

Almost surely, 2^13646435644 is an apocalyptic number.

It is an amenable number.

13646435644 is a deficient number, since it is larger than the sum of its proper divisors (10498349636).

13646435644 is a wasteful number, since it uses less digits than its factorization.

13646435644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93729 (or 93727 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 46.

The spelling of 13646435644 in words is "thirteen billion, six hundred forty-six million, four hundred thirty-five thousand, six hundred forty-four".