9729963911 has 2 divisors, whose sum is σ = 9729963912. Its totient is φ = 9729963910.

The previous prime is 9729963877. The next prime is 9729963917. The reversal of 9729963911 is 1193699279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9729963911 - 2²² = 9725769607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9729963917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864981955 + 4864981956.

It is an arithmetic number, because the mean of its divisors is an integer number (4864981956).

Almost surely, 2^9729963911 is an apocalyptic number.

9729963911 is a deficient number, since it is larger than the sum of its proper divisors (1).

9729963911 is an equidigital number, since it uses as much as digits as its factorization.

9729963911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 56.

The square root of 9729963911 is about 98640.5794336185. The cubic root of 9729963911 is about 2134.8649634604.

The spelling of 9729963911 in words is "nine billion, seven hundred twenty-nine million, nine hundred sixty-three thousand, nine hundred eleven".