4138663933 has 2 divisors, whose sum is σ = 4138663934. Its totient is φ = 4138663932.

The previous prime is 4138663853. The next prime is 4138663939. The reversal of 4138663933 is 3393668314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3843752004 + 294911929 = 61998^2 + 17173^2 .

It is a cyclic number.

It is not a de Polignac number, because 4138663933 - 2²¹ = 4136566781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138663939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069331966 + 2069331967.

It is an arithmetic number, because the mean of its divisors is an integer number (2069331967).

Almost surely, 2^4138663933 is an apocalyptic number.

It is an amenable number.

4138663933 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138663933 is an equidigital number, since it uses as much as digits as its factorization.

4138663933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 46.

The square root of 4138663933 is about 64332.4485232763. The cubic root of 4138663933 is about 1605.5360227997.

The spelling of 4138663933 in words is "four billion, one hundred thirty-eight million, six hundred sixty-three thousand, nine hundred thirty-three".