3606778899 has 6 divisors (see below), whose sum is σ = 5209791756. Its totient is φ = 2404519260.

The previous prime is 3606778849. The next prime is 3606778943. The reversal of 3606778899 is 9988776063.

It is a happy number.

It is not a de Polignac number, because 3606778899 - 2¹² = 3606774803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3606778849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200376597 + ... + 200376614.

It is an arithmetic number, because the mean of its divisors is an integer number (868298626).

Almost surely, 2^3606778899 is an apocalyptic number.

3606778899 is a deficient number, since it is larger than the sum of its proper divisors (1603012857).

3606778899 is a wasteful number, since it uses less digits than its factorization.

3606778899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400753217 (or 400753214 counting only the distinct ones).

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

The square root of 3606778899 is about 60056.4642565644. The cubic root of 3606778899 is about 1533.5802494246.

The spelling of 3606778899 in words is "three billion, six hundred six million, seven hundred seventy-eight thousand, eight hundred ninety-nine".