9999741539 has 2 divisors, whose sum is σ = 9999741540. Its totient is φ = 9999741538.

The previous prime is 9999741527. The next prime is 9999741551. The reversal of 9999741539 is 9351479999.

It is a balanced prime because it is at equal distance from previous prime (9999741527) and next prime (9999741551).

It is a cyclic number.

It is not a de Polignac number, because 9999741539 - 2¹² = 9999737443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9999741599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999870769 + 4999870770.

It is an arithmetic number, because the mean of its divisors is an integer number (4999870770).

Almost surely, 2^9999741539 is an apocalyptic number.

9999741539 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999741539 is an equidigital number, since it uses as much as digits as its factorization.

9999741539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24800580, while the sum is 65.

The square root of 9999741539 is about 99998.7076866496. The cubic root of 9999741539 is about 2154.4161286272.

The spelling of 9999741539 in words is "nine billion, nine hundred ninety-nine million, seven hundred forty-one thousand, five hundred thirty-nine".