13721382572 has 12 divisors (see below), whose sum is σ = 24013691520. Its totient is φ = 6860327856.

The previous prime is 13721382503. The next prime is 13721382581. The reversal of 13721382572 is 27528312731.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5429 + ... + 165747.

It is an arithmetic number, because the mean of its divisors is an integer number (2001140960).

Almost surely, 2^13721382572 is an apocalyptic number.

It is an amenable number.

13721382572 is a deficient number, since it is larger than the sum of its proper divisors (10292308948).

13721382572 is a wasteful number, since it uses less digits than its factorization.

13721382572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181720 (or 181718 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The spelling of 13721382572 in words is "thirteen billion, seven hundred twenty-one million, three hundred eighty-two thousand, five hundred seventy-two".