13953195643 has 2 divisors, whose sum is σ = 13953195644. Its totient is φ = 13953195642.

The previous prime is 13953195637. The next prime is 13953195703. The reversal of 13953195643 is 34659135931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13953195643 - 2⁹ = 13953195131 is a prime.

It is not a weakly prime, because it can be changed into another prime (13953195143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6976597821 + 6976597822.

It is an arithmetic number, because the mean of its divisors is an integer number (6976597822).

Almost surely, 2^13953195643 is an apocalyptic number.

13953195643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13953195643 is an equidigital number, since it uses as much as digits as its factorization.

13953195643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1312200, while the sum is 49.

The spelling of 13953195643 in words is "thirteen billion, nine hundred fifty-three million, one hundred ninety-five thousand, six hundred forty-three".