13621645612 has 6 divisors (see below), whose sum is σ = 23837879828. Its totient is φ = 6810822804.

The previous prime is 13621645601. The next prime is 13621645621. The reversal of 13621645612 is 21654612631.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702705698 + ... + 1702705705.

Almost surely, 2^13621645612 is an apocalyptic number.

It is an amenable number.

13621645612 is a deficient number, since it is larger than the sum of its proper divisors (10216234216).

13621645612 is a wasteful number, since it uses less digits than its factorization.

13621645612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405411407 (or 3405411405 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The spelling of 13621645612 in words is "thirteen billion, six hundred twenty-one million, six hundred forty-five thousand, six hundred twelve".