13629629644 has 6 divisors (see below), whose sum is σ = 23851851884. Its totient is φ = 6814814820.

The previous prime is 13629629591. The next prime is 13629629659. The reversal of 13629629644 is 44692692631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13629629591 and 13629629600.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1703703702 + ... + 1703703709.

Almost surely, 2^13629629644 is an apocalyptic number.

It is an amenable number.

13629629644 is a deficient number, since it is larger than the sum of its proper divisors (10222222240).

13629629644 is a wasteful number, since it uses less digits than its factorization.

13629629644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407407415 (or 3407407413 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 52.

The spelling of 13629629644 in words is "thirteen billion, six hundred twenty-nine million, six hundred twenty-nine thousand, six hundred forty-four".