4081555688 has 32 divisors (see below), whose sum is σ = 8749935360. Its totient is φ = 1748489280.

The previous prime is 4081555679. The next prime is 4081555693. The reversal of 4081555688 is 8865551804.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128078 + ... + 156738.

It is an arithmetic number, because the mean of its divisors is an integer number (273435480).

Almost surely, 2^4081555688 is an apocalyptic number.

It is an amenable number.

4081555688 is an abundant number, since it is smaller than the sum of its proper divisors (4668379672).

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

4081555688 is a wasteful number, since it uses less digits than its factorization.

4081555688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31217 (or 31213 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 50.

The square root of 4081555688 is about 63887.0541502737. The cubic root of 4081555688 is about 1598.1170150575.

The spelling of 4081555688 in words is "four billion, eighty-one million, five hundred fifty-five thousand, six hundred eighty-eight".