4200686649 has 20 divisors (see below), whose sum is σ = 6605370640. Its totient is φ = 2653064280.

The previous prime is 4200686629. The next prime is 4200686683. The reversal of 4200686649 is 9466860024.

4200686649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4200686649 - 2¹⁹ = 4200162361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4200686629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1363207 + ... + 1366284.

It is an arithmetic number, because the mean of its divisors is an integer number (330268532).

Almost surely, 2^4200686649 is an apocalyptic number.

It is an amenable number.

4200686649 is a deficient number, since it is larger than the sum of its proper divisors (2404683991).

4200686649 is a wasteful number, since it uses less digits than its factorization.

4200686649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729522 (or 2729513 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 4200686649 is about 64812.7043796199. The cubic root of 4200686649 is about 1613.5165665641.

The spelling of 4200686649 in words is "four billion, two hundred million, six hundred eighty-six thousand, six hundred forty-nine".