13696421771 has 2 divisors, whose sum is σ = 13696421772. Its totient is φ = 13696421770.

The previous prime is 13696421743. The next prime is 13696421813. The reversal of 13696421771 is 17712469631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13696421771 is a prime.

It is not a weakly prime, because it can be changed into another prime (13696421741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6848210885 + 6848210886.

It is an arithmetic number, because the mean of its divisors is an integer number (6848210886).

Almost surely, 2^13696421771 is an apocalyptic number.

13696421771 is a deficient number, since it is larger than the sum of its proper divisors (1).

13696421771 is an equidigital number, since it uses as much as digits as its factorization.

13696421771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The spelling of 13696421771 in words is "thirteen billion, six hundred ninety-six million, four hundred twenty-one thousand, seven hundred seventy-one".