13657716851 has 2 divisors, whose sum is σ = 13657716852. Its totient is φ = 13657716850.

The previous prime is 13657716847. The next prime is 13657716869. The reversal of 13657716851 is 15861775631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13657716851 - 2² = 13657716847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13657716851.

It is not a weakly prime, because it can be changed into another prime (13657716811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6828858425 + 6828858426.

It is an arithmetic number, because the mean of its divisors is an integer number (6828858426).

Almost surely, 2^13657716851 is an apocalyptic number.

13657716851 is a deficient number, since it is larger than the sum of its proper divisors (1).

13657716851 is an equidigital number, since it uses as much as digits as its factorization.

13657716851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 50.

The spelling of 13657716851 in words is "thirteen billion, six hundred fifty-seven million, seven hundred sixteen thousand, eight hundred fifty-one".