6181405872 has 40 divisors (see below), whose sum is σ = 15981904176. Its totient is φ = 2058756096.

The previous prime is 6181405861. The next prime is 6181405873. The reversal of 6181405872 is 2785041816.

It is not an unprimeable number, because it can be changed into a prime (6181405873) 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 7 ways as a sum of consecutive naturals, for example, 5508 + ... + 111324.

Almost surely, 2^6181405872 is an apocalyptic number.

It is an amenable number.

6181405872 is an abundant number, since it is smaller than the sum of its proper divisors (9800498304).

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

6181405872 is a wasteful number, since it uses less digits than its factorization.

6181405872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107045 (or 107039 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 6181405872 is about 78621.9172495812. The cubic root of 6181405872 is about 1835.2522004359.

The spelling of 6181405872 in words is "six billion, one hundred eighty-one million, four hundred five thousand, eight hundred seventy-two".