8481477979 has 16 divisors (see below), whose sum is σ = 9205257600. Its totient is φ = 7768010880.

The previous prime is 8481477971. The next prime is 8481477989. The reversal of 8481477979 is 9797741848.

It is a cyclic number.

It is not a de Polignac number, because 8481477979 - 2³ = 8481477971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8481477979.

It is not an unprimeable number, because it can be changed into a prime (8481477971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2382669 + ... + 2386225.

It is an arithmetic number, because the mean of its divisors is an integer number (575328600).

Almost surely, 2^8481477979 is an apocalyptic number.

8481477979 is a deficient number, since it is larger than the sum of its proper divisors (723779621).

8481477979 is a wasteful number, since it uses less digits than its factorization.

8481477979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950.

The product of its digits is 28449792, while the sum is 64.

The square root of 8481477979 is about 92094.9400292980. The cubic root of 8481477979 is about 2039.3441101588.

The spelling of 8481477979 in words is "eight billion, four hundred eighty-one million, four hundred seventy-seven thousand, nine hundred seventy-nine".