4087632661 has 16 divisors (see below), whose sum is σ = 4745115648. Its totient is φ = 3448695600.

The previous prime is 4087632649. The next prime is 4087632667. The reversal of 4087632661 is 1662367804.

4087632661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4087632661 - 2⁹ = 4087632149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4087632667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313176 + ... + 325966.

It is an arithmetic number, because the mean of its divisors is an integer number (296569728).

Almost surely, 2^4087632661 is an apocalyptic number.

It is an amenable number.

4087632661 is a deficient number, since it is larger than the sum of its proper divisors (657482987).

4087632661 is a wasteful number, since it uses less digits than its factorization.

4087632661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13512.

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

The square root of 4087632661 is about 63934.5967454241. The cubic root of 4087632661 is about 1598.9097600136.

It can be divided in two parts, 40876 and 32661, that added together give a palindrome (73537).

The spelling of 4087632661 in words is "four billion, eighty-seven million, six hundred thirty-two thousand, six hundred sixty-one".