7979887112 has 12 divisors (see below), whose sum is σ = 14962762095. Its totient is φ = 3989817224.

The previous prime is 7979887093. The next prime is 7979887133. The reversal of 7979887112 is 2117889797.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 3989943556 + 3989943556 = 63166^2 + 63166^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=63166.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 236873 + ... + 268455.

Almost surely, 2^7979887112 is an apocalyptic number.

It is an amenable number.

7979887112 is a deficient number, since it is larger than the sum of its proper divisors (6982874983).

7979887112 is an frugal number, since it uses more digits than its factorization.

7979887112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63172 (or 31585 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 59.

The square root of 7979887112 is about 89330.2138808589. The cubic root of 7979887112 is about 1998.3225194228.

The spelling of 7979887112 in words is "seven billion, nine hundred seventy-nine million, eight hundred eighty-seven thousand, one hundred twelve".