13621640322 has 16 divisors (see below), whose sum is σ = 28677137760. Its totient is φ = 4301570592.

The previous prime is 13621640237. The next prime is 13621640363. The reversal of 13621640322 is 22304612631.

It is a self number, because there is not a number n which added to its sum of digits gives 13621640322.

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, 59743923 + ... + 59744150.

It is an arithmetic number, because the mean of its divisors is an integer number (1792321110).

Almost surely, 2^13621640322 is an apocalyptic number.

13621640322 is an abundant number, since it is smaller than the sum of its proper divisors (15055497438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13621640322 is a wasteful number, since it uses less digits than its factorization.

13621640322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119488097.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 13621640322 in words is "thirteen billion, six hundred twenty-one million, six hundred forty thousand, three hundred twenty-two".