79643290163 has 2 divisors, whose sum is σ = 79643290164. Its totient is φ = 79643290162.

The previous prime is 79643290117. The next prime is 79643290169. The reversal of 79643290163 is 36109234697.

It is a strong prime.

It is an emirp because it is prime and its reverse (36109234697) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79643290163 - 2⁶ = 79643290099 is a prime.

It is not a weakly prime, because it can be changed into another prime (79643290169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39821645081 + 39821645082.

It is an arithmetic number, because the mean of its divisors is an integer number (39821645082).

Almost surely, 2^79643290163 is an apocalyptic number.

79643290163 is a deficient number, since it is larger than the sum of its proper divisors (1).

79643290163 is an equidigital number, since it uses as much as digits as its factorization.

79643290163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 79643290163 in words is "seventy-nine billion, six hundred forty-three million, two hundred ninety thousand, one hundred sixty-three".