4779661689 has 40 divisors (see below), whose sum is σ = 7970283552. Its totient is φ = 2829375360.

The previous prime is 4779661681. The next prime is 4779661693. The reversal of 4779661689 is 9861669774.

4779661689 is a `hidden beast` number, since 4 + 7 + 7 + 9 + 6 + 616 + 8 + 9 = 666.

It is not a de Polignac number, because 4779661689 - 2³ = 4779661681 is a prime.

It is a super-2 number, since 2×4779661689² = 45690331722588665442, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4779661681) 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 39 ways as a sum of consecutive naturals, for example, 24064 + ... + 100689.

Almost surely, 2^4779661689 is an apocalyptic number.

It is an amenable number.

4779661689 is a deficient number, since it is larger than the sum of its proper divisors (3190621863).

4779661689 is a wasteful number, since it uses less digits than its factorization.

4779661689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124819 (or 124810 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 4779661689 is about 69135.0973746331. The cubic root of 4779661689 is about 1684.4794582347.

The spelling of 4779661689 in words is "four billion, seven hundred seventy-nine million, six hundred sixty-one thousand, six hundred eighty-nine".