4047499561 has 16 divisors (see below), whose sum is σ = 4648971136. Its totient is φ = 3451890816.

The previous prime is 4047499549. The next prime is 4047499607. The reversal of 4047499561 is 1659947404.

It is a cyclic number.

It is not a de Polignac number, because 4047499561 - 2¹³ = 4047491369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4047499361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268410 + ... + 1271596.

It is an arithmetic number, because the mean of its divisors is an integer number (290560696).

Almost surely, 2^4047499561 is an apocalyptic number.

It is an amenable number.

4047499561 is a deficient number, since it is larger than the sum of its proper divisors (601471575).

4047499561 is a wasteful number, since it uses less digits than its factorization.

4047499561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 4047499561 is about 63619.9619694951. The cubic root of 4047499561 is about 1593.6597476079.

The spelling of 4047499561 in words is "four billion, forty-seven million, four hundred ninety-nine thousand, five hundred sixty-one".