4574487661 has 8 divisors (see below), whose sum is σ = 4654811448. Its totient is φ = 4494336000.

The previous prime is 4574487587. The next prime is 4574487713. The reversal of 4574487661 is 1667844754.

It can be written as a sum of positive squares in 4 ways, for example, as 129732100 + 4444755561 = 11390^2 + 66669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4574487661 is a prime.

It is a super-3 number, since 3×4574487661³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4574487599 and 4574487608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4574407661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11181 + ... + 96301.

It is an arithmetic number, because the mean of its divisors is an integer number (581851431).

Almost surely, 2^4574487661 is an apocalyptic number.

It is an amenable number.

4574487661 is a deficient number, since it is larger than the sum of its proper divisors (80323787).

4574487661 is an equidigital number, since it uses as much as digits as its factorization.

4574487661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86063.

The product of its digits is 4515840, while the sum is 52.

The square root of 4574487661 is about 67634.9588674378. The cubic root of 4574487661 is about 1660.0231841006.

The spelling of 4574487661 in words is "four billion, five hundred seventy-four million, four hundred eighty-seven thousand, six hundred sixty-one".