79816420324 has 27 divisors (see below), whose sum is σ = 144691034761. Its totient is φ = 38524154480.

The previous prime is 79816420309. The next prime is 79816420331. The reversal of 79816420324 is 42302461897.

It is a happy number.

The square root of 79816420324 is 282518.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41853794724 + 37962625600 = 204582^2 + 194840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16383609 + ... + 16388479.

Almost surely, 2^79816420324 is an apocalyptic number.

79816420324 is the 282518-th square number.

It is an amenable number.

79816420324 is a deficient number, since it is larger than the sum of its proper divisors (64874614437).

79816420324 is an frugal number, since it uses more digits than its factorization.

79816420324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9804 (or 4902 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 79816420324 in words is "seventy-nine billion, eight hundred sixteen million, four hundred twenty thousand, three hundred twenty-four".