4087259665 has 4 divisors (see below), whose sum is σ = 4904711604. Its totient is φ = 3269807728.

The previous prime is 4087259621. The next prime is 4087259717. The reversal of 4087259665 is 5669527804.

4087259665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1158177024 + 2929082641 = 34032^2 + 54121^2 .

It is a cyclic number.

It is not a de Polignac number, because 4087259665 - 2¹⁹ = 4086735377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408725962 + ... + 408725971.

It is an arithmetic number, because the mean of its divisors is an integer number (1226177901).

Almost surely, 2^4087259665 is an apocalyptic number.

It is an amenable number.

4087259665 is a deficient number, since it is larger than the sum of its proper divisors (817451939).

4087259665 is an equidigital number, since it uses as much as digits as its factorization.

4087259665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817451938.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The square root of 4087259665 is about 63931.6796666567. The cubic root of 4087259665 is about 1598.8611250917.

The spelling of 4087259665 in words is "four billion, eighty-seven million, two hundred fifty-nine thousand, six hundred sixty-five".