13423843651 has 2 divisors, whose sum is σ = 13423843652. Its totient is φ = 13423843650.

The previous prime is 13423843649. The next prime is 13423843709. The reversal of 13423843651 is 15634832431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13423843651 - 2¹ = 13423843649 is a prime.

Together with 13423843649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13423843151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6711921825 + 6711921826.

It is an arithmetic number, because the mean of its divisors is an integer number (6711921826).

Almost surely, 2^13423843651 is an apocalyptic number.

13423843651 is a deficient number, since it is larger than the sum of its proper divisors (1).

13423843651 is an equidigital number, since it uses as much as digits as its factorization.

13423843651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The spelling of 13423843651 in words is "thirteen billion, four hundred twenty-three million, eight hundred forty-three thousand, six hundred fifty-one".