4067661832 has 16 divisors (see below), whose sum is σ = 8213548140. Its totient is φ = 1877382336.

The previous prime is 4067661827. The next prime is 4067661833. The reversal of 4067661832 is 2381667604.

It can be written as a sum of positive squares in 2 ways, for example, as 4067123076 + 538756 = 63774^2 + 734^2 .

It is not an unprimeable number, because it can be changed into a prime (4067661833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19555963 + ... + 19556170.

Almost surely, 2^4067661832 is an apocalyptic number.

It is an amenable number.

4067661832 is an abundant number, since it is smaller than the sum of its proper divisors (4145886308).

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

4067661832 is a wasteful number, since it uses less digits than its factorization.

4067661832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39112152 (or 39112148 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 4067661832 is about 63778.2238071899. The cubic root of 4067661832 is about 1596.3015920737.

The spelling of 4067661832 in words is "four billion, sixty-seven million, six hundred sixty-one thousand, eight hundred thirty-two".