4679661609 has 24 divisors (see below), whose sum is σ = 7727076032. Its totient is φ = 2673427680.

The previous prime is 4679661607. The next prime is 4679661631. The reversal of 4679661609 is 9061669764.

It is not a de Polignac number, because 4679661609 - 2¹ = 4679661607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4679661607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366879 + ... + 379419.

Almost surely, 2^4679661609 is an apocalyptic number.

It is an amenable number.

4679661609 is a deficient number, since it is larger than the sum of its proper divisors (3047414423).

4679661609 is a wasteful number, since it uses less digits than its factorization.

4679661609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18477 (or 18474 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 4679661609 is about 68408.0522234042. The cubic root of 4679661609 is about 1672.6490054728.

It can be divided in two parts, 4679661 and 609, that added together give a triangular number (4680270 = T₃₀₅₉).

The spelling of 4679661609 in words is "four billion, six hundred seventy-nine million, six hundred sixty-one thousand, six hundred nine".