3664181933 has 2 divisors, whose sum is σ = 3664181934. Its totient is φ = 3664181932.

The previous prime is 3664181881. The next prime is 3664181951. The reversal of 3664181933 is 3391814663.

It is a happy number.

3664181933 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2513819044 + 1150362889 = 50138^2 + 33917^2 .

It is an emirp because it is prime and its reverse (3391814663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3664181933 - 2¹⁰ = 3664180909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3664181953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832090966 + 1832090967.

It is an arithmetic number, because the mean of its divisors is an integer number (1832090967).

Almost surely, 2^3664181933 is an apocalyptic number.

It is an amenable number.

3664181933 is a deficient number, since it is larger than the sum of its proper divisors (1).

3664181933 is an equidigital number, since it uses as much as digits as its factorization.

3664181933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 3664181933 is about 60532.4865919119. The cubic root of 3664181933 is about 1541.6732716399.

The spelling of 3664181933 in words is "three billion, six hundred sixty-four million, one hundred eighty-one thousand, nine hundred thirty-three".