9381642733 has 2 divisors, whose sum is σ = 9381642734. Its totient is φ = 9381642732.

The previous prime is 9381642719. The next prime is 9381642757. The reversal of 9381642733 is 3372461839.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9381472164 + 170569 = 96858^2 + 413^2 .

It is a cyclic number.

It is not a de Polignac number, because 9381642733 - 2⁵ = 9381642701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9381642703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4690821366 + 4690821367.

It is an arithmetic number, because the mean of its divisors is an integer number (4690821367).

Almost surely, 2^9381642733 is an apocalyptic number.

It is an amenable number.

9381642733 is a deficient number, since it is larger than the sum of its proper divisors (1).

9381642733 is an equidigital number, since it uses as much as digits as its factorization.

9381642733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 9381642733 is about 96858.8805066422. The cubic root of 9381642733 is about 2109.0795632758.

The spelling of 9381642733 in words is "nine billion, three hundred eighty-one million, six hundred forty-two thousand, seven hundred thirty-three".