79559718736 has 20 divisors (see below), whose sum is σ = 155878946100. Its totient is φ = 39332893952.

The previous prime is 79559718683. The next prime is 79559718737. The reversal of 79559718736 is 63781795597.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20586510400 + 58973208336 = 143480^2 + 242844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79559718737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27933871 + ... + 27936718.

It is an arithmetic number, because the mean of its divisors is an integer number (7793947305).

Almost surely, 2^79559718736 is an apocalyptic number.

It is an amenable number.

79559718736 is a deficient number, since it is larger than the sum of its proper divisors (76319227364).

79559718736 is a wasteful number, since it uses less digits than its factorization.

79559718736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55870686 (or 55870680 counting only the distinct ones).

The product of its digits is 100018800, while the sum is 67.

The spelling of 79559718736 in words is "seventy-nine billion, five hundred fifty-nine million, seven hundred eighteen thousand, seven hundred thirty-six".