8445879867 has 16 divisors (see below), whose sum is σ = 12048197120. Its totient is φ = 5246791200.

The previous prime is 8445879859. The next prime is 8445879961. The reversal of 8445879867 is 7689785448.

It is a happy number.

It is not a de Polignac number, because 8445879867 - 2³ = 8445879859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8445879798 and 8445879807.

It is not an unprimeable number, because it can be changed into a prime (8445879817) 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, 1211059 + ... + 1218012.

It is an arithmetic number, because the mean of its divisors is an integer number (753012320).

Almost surely, 2^8445879867 is an apocalyptic number.

8445879867 is a deficient number, since it is larger than the sum of its proper divisors (3602317253).

8445879867 is a wasteful number, since it uses less digits than its factorization.

8445879867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429154.

The product of its digits is 108380160, while the sum is 66.

The square root of 8445879867 is about 91901.4682526890. The cubic root of 8445879867 is about 2036.4869585913.

The spelling of 8445879867 in words is "eight billion, four hundred forty-five million, eight hundred seventy-nine thousand, eight hundred sixty-seven".