3568666673 has 48 divisors (see below), whose sum is σ = 4516213968. Its totient is φ = 2791219200.

The previous prime is 3568666657. The next prime is 3568666721. The reversal of 3568666673 is 3766668653.

It can be written as a sum of positive squares in 8 ways, for example, as 57274624 + 3511392049 = 7568^2 + 59257^2 .

It is not a de Polignac number, because 3568666673 - 2⁴ = 3568666657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3568666603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3021143 + ... + 3022323.

It is an arithmetic number, because the mean of its divisors is an integer number (94087791).

Almost surely, 2^3568666673 is an apocalyptic number.

It is an amenable number.

3568666673 is a deficient number, since it is larger than the sum of its proper divisors (947547295).

3568666673 is a wasteful number, since it uses less digits than its factorization.

3568666673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1335 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 56.

The square root of 3568666673 is about 59738.3182973876. The cubic root of 3568666673 is about 1528.1594158176.

The spelling of 3568666673 in words is "three billion, five hundred sixty-eight million, six hundred sixty-six thousand, six hundred seventy-three".