3966618073 has 4 divisors (see below), whose sum is σ = 4327219728. Its totient is φ = 3606016420.

The previous prime is 3966618059. The next prime is 3966618083. The reversal of 3966618073 is 3708166693.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3966618073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3966618023) 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 3 ways as a sum of consecutive naturals, for example, 180300811 + ... + 180300832.

It is an arithmetic number, because the mean of its divisors is an integer number (1081804932).

Almost surely, 2^3966618073 is an apocalyptic number.

It is an amenable number.

3966618073 is a deficient number, since it is larger than the sum of its proper divisors (360601655).

3966618073 is a wasteful number, since it uses less digits than its factorization.

3966618073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360601654.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3966618073 is about 62981.0929803540. The cubic root of 3966618073 is about 1582.9728349893.

The spelling of 3966618073 in words is "three billion, nine hundred sixty-six million, six hundred eighteen thousand, seventy-three".