79502711609 has 2 divisors, whose sum is σ = 79502711610. Its totient is φ = 79502711608.

The previous prime is 79502711549. The next prime is 79502711707. The reversal of 79502711609 is 90611720597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42716622400 + 36786089209 = 206680^2 + 191797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79502711609 is a prime.

It is not a weakly prime, because it can be changed into another prime (79502011609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39751355804 + 39751355805.

It is an arithmetic number, because the mean of its divisors is an integer number (39751355805).

Almost surely, 2^79502711609 is an apocalyptic number.

It is an amenable number.

79502711609 is a deficient number, since it is larger than the sum of its proper divisors (1).

79502711609 is an equidigital number, since it uses as much as digits as its factorization.

79502711609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 47.

The spelling of 79502711609 in words is "seventy-nine billion, five hundred two million, seven hundred eleven thousand, six hundred nine".