8061855984 has 240 divisors, whose sum is σ = 27961752000. Its totient is φ = 2111422464.

The previous prime is 8061855983. The next prime is 8061856051. The reversal of 8061855984 is 4895581608.

It is a happy number.

8061855984 is a `hidden beast` number, since 8 + 0 + 6 + 1 + 8 + 559 + 84 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 8061855984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061855983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1950432 + ... + 1954560.

It is an arithmetic number, because the mean of its divisors is an integer number (116507300).

Almost surely, 2^8061855984 is an apocalyptic number.

8061855984 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8061855984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13980876000).

8061855984 is an abundant number, since it is smaller than the sum of its proper divisors (19899896016).

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

8061855984 is a wasteful number, since it uses less digits than its factorization.

8061855984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The square root of 8061855984 is about 89787.8387310887. The cubic root of 8061855984 is about 2005.1414368212.

The spelling of 8061855984 in words is "eight billion, sixty-one million, eight hundred fifty-five thousand, nine hundred eighty-four".