8426787984 has 60 divisors (see below), whose sum is σ = 24396531900. Its totient is φ = 2712068352.

The previous prime is 8426787949. The next prime is 8426788009. The reversal of 8426787984 is 4897876248.

It can be written as a sum of positive squares in 2 ways, for example, as 5535360000 + 2891427984 = 74400^2 + 53772^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1004779 + ... + 1013130.

It is an arithmetic number, because the mean of its divisors is an integer number (406608865).

Almost surely, 2^8426787984 is an apocalyptic number.

It is an amenable number.

8426787984 is an abundant number, since it is smaller than the sum of its proper divisors (15969743916).

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

8426787984 is a wasteful number, since it uses less digits than its factorization.

8426787984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017952 (or 2017943 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The square root of 8426787984 is about 91797.5380062015. The cubic root of 8426787984 is about 2034.9513102626.

The spelling of 8426787984 in words is "eight billion, four hundred twenty-six million, seven hundred eighty-seven thousand, nine hundred eighty-four".