79636510579 has 2 divisors, whose sum is σ = 79636510580. Its totient is φ = 79636510578.

The previous prime is 79636510571. The next prime is 79636510619. The reversal of 79636510579 is 97501563697.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79636510579 - 2³ = 79636510571 is a prime.

It is not a weakly prime, because it can be changed into another prime (79636510571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39818255289 + 39818255290.

It is an arithmetic number, because the mean of its divisors is an integer number (39818255290).

Almost surely, 2^79636510579 is an apocalyptic number.

79636510579 is a deficient number, since it is larger than the sum of its proper divisors (1).

79636510579 is an equidigital number, since it uses as much as digits as its factorization.

79636510579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10716300, while the sum is 58.

The spelling of 79636510579 in words is "seventy-nine billion, six hundred thirty-six million, five hundred ten thousand, five hundred seventy-nine".