79323718651 has 2 divisors, whose sum is σ = 79323718652. Its totient is φ = 79323718650.

The previous prime is 79323718637. The next prime is 79323718739. The reversal of 79323718651 is 15681732397.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79323718651 - 2¹¹ = 79323716603 is a prime.

It is not a weakly prime, because it can be changed into another prime (79323718631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39661859325 + 39661859326.

It is an arithmetic number, because the mean of its divisors is an integer number (39661859326).

Almost surely, 2^79323718651 is an apocalyptic number.

79323718651 is a deficient number, since it is larger than the sum of its proper divisors (1).

79323718651 is an equidigital number, since it uses as much as digits as its factorization.

79323718651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 52.

The spelling of 79323718651 in words is "seventy-nine billion, three hundred twenty-three million, seven hundred eighteen thousand, six hundred fifty-one".