13720652328871 has 4 divisors (see below), whose sum is σ = 13721038785432. Its totient is φ = 13720265872312.

The previous prime is 13720652328839. The next prime is 13720652328881. The reversal of 13720652328871 is 17882325602731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13720652328871 - 2⁵ = 13720652328839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13720652328881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193175020 + ... + 193246033.

It is an arithmetic number, because the mean of its divisors is an integer number (3430259696358).

Almost surely, 2^{13720652328871} is an apocalyptic number.

13720652328871 is a deficient number, since it is larger than the sum of its proper divisors (386456561).

13720652328871 is an equidigital number, since it uses as much as digits as its factorization.

13720652328871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386456560.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 13720652328871 in words is "thirteen trillion, seven hundred twenty billion, six hundred fifty-two million, three hundred twenty-eight thousand, eight hundred seventy-one".