4671478561 has 4 divisors (see below), whose sum is σ = 4735471492. Its totient is φ = 4607485632.

The previous prime is 4671478531. The next prime is 4671478619. The reversal of 4671478561 is 1658741764.

It is a happy number.

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 2742512161 + 1928966400 = 52369^2 + 43920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4671478561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4671478531) 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, 31996356 + ... + 31996501.

It is an arithmetic number, because the mean of its divisors is an integer number (1183867873).

Almost surely, 2^4671478561 is an apocalyptic number.

It is an amenable number.

4671478561 is a deficient number, since it is larger than the sum of its proper divisors (63992931).

4671478561 is an equidigital number, since it uses as much as digits as its factorization.

4671478561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63992930.

The product of its digits is 1128960, while the sum is 49.

The square root of 4671478561 is about 68348.2154924326. The cubic root of 4671478561 is about 1671.6734824471.

The spelling of 4671478561 in words is "four billion, six hundred seventy-one million, four hundred seventy-eight thousand, five hundred sixty-one".