13821380570 has 64 divisors (see below), whose sum is σ = 26899672320. Its totient is φ = 5097404928.

The previous prime is 13821380561. The next prime is 13821380609. The reversal of 13821380570 is 7508312831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5247974 + ... + 5250606.

It is an arithmetic number, because the mean of its divisors is an integer number (420307380).

Almost surely, 2^13821380570 is an apocalyptic number.

13821380570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13821380570 is a deficient number, since it is larger than the sum of its proper divisors (13078291750).

13821380570 is a wasteful number, since it uses less digits than its factorization.

13821380570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 13821380570 in words is "thirteen billion, eight hundred twenty-one million, three hundred eighty thousand, five hundred seventy".