13716648997 has 2 divisors, whose sum is σ = 13716648998. Its totient is φ = 13716648996.

The previous prime is 13716648983. The next prime is 13716649069. The reversal of 13716648997 is 79984661731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13691106081 + 25542916 = 117009^2 + 5054^2 .

It is a cyclic number.

It is not a de Polignac number, because 13716648997 - 2¹¹ = 13716646949 is a prime.

It is a super-2 number, since 2×13716648997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13716648977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6858324498 + 6858324499.

It is an arithmetic number, because the mean of its divisors is an integer number (6858324499).

Almost surely, 2^13716648997 is an apocalyptic number.

It is an amenable number.

13716648997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13716648997 is an equidigital number, since it uses as much as digits as its factorization.

13716648997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The spelling of 13716648997 in words is "thirteen billion, seven hundred sixteen million, six hundred forty-eight thousand, nine hundred ninety-seven".