3668814646 has 16 divisors (see below), whose sum is σ = 6292958976. Its totient is φ = 1571458536.

The previous prime is 3668814631. The next prime is 3668814647. The reversal of 3668814646 is 6464188663.

It is a junction number, because it is equal to n+sod(n) for n = 3668814593 and 3668814602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668814647) 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 7 ways as a sum of consecutive naturals, for example, 48306 + ... + 98341.

It is an arithmetic number, because the mean of its divisors is an integer number (393309936).

Almost surely, 2^3668814646 is an apocalyptic number.

3668814646 is a deficient number, since it is larger than the sum of its proper divisors (2624144330).

3668814646 is a wasteful number, since it uses less digits than its factorization.

3668814646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148443.

The product of its digits is 3981312, while the sum is 52.

The square root of 3668814646 is about 60570.7408407723. The cubic root of 3668814646 is about 1542.3227228282.

The spelling of 3668814646 in words is "three billion, six hundred sixty-eight million, eight hundred fourteen thousand, six hundred forty-six".