9741391823 has 2 divisors, whose sum is σ = 9741391824. Its totient is φ = 9741391822.

The previous prime is 9741391819. The next prime is 9741391853. The reversal of 9741391823 is 3281931479.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9741391823 - 2² = 9741391819 is a prime.

It is a super-2 number, since 2×9741391823² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9741391853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4870695911 + 4870695912.

It is an arithmetic number, because the mean of its divisors is an integer number (4870695912).

Almost surely, 2^9741391823 is an apocalyptic number.

9741391823 is a deficient number, since it is larger than the sum of its proper divisors (1).

9741391823 is an equidigital number, since it uses as much as digits as its factorization.

9741391823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 9741391823 is about 98698.4894666580. The cubic root of 9741391823 is about 2135.7004411622.

The spelling of 9741391823 in words is "nine billion, seven hundred forty-one million, three hundred ninety-one thousand, eight hundred twenty-three".