79684514538 has 16 divisors (see below), whose sum is σ = 159394167360. Its totient is φ = 26557315136.

The previous prime is 79684514527. The next prime is 79684514551. The reversal of 79684514538 is 83541548697.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006095 + ... + 1082402.

It is an arithmetic number, because the mean of its divisors is an integer number (9962135460).

Almost surely, 2^79684514538 is an apocalyptic number.

79684514538 is an abundant number, since it is smaller than the sum of its proper divisors (79709652822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79684514538 is a wasteful number, since it uses less digits than its factorization.

79684514538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094861.

The product of its digits is 29030400, while the sum is 60.

The spelling of 79684514538 in words is "seventy-nine billion, six hundred eighty-four million, five hundred fourteen thousand, five hundred thirty-eight".