999105937939 has 2 divisors, whose sum is σ = 999105937940. Its totient is φ = 999105937938.

The previous prime is 999105937913. The next prime is 999105937981. The reversal of 999105937939 is 939739501999.

999105937939 = T₈₁₆₁₃₀ + T₈₁₆₁₃₁ + T₈₁₆₁₃₂.

999105937939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999105937939 - 2¹⁹ = 999105413651 is a prime.

It is not a weakly prime, because it can be changed into another prime (999105935939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499552968969 + 499552968970.

It is an arithmetic number, because the mean of its divisors is an integer number (499552968970).

Almost surely, 2^999105937939 is an apocalyptic number.

999105937939 is the 816132-nd centered triangular number.

999105937939 is a deficient number, since it is larger than the sum of its proper divisors (1).

999105937939 is an equidigital number, since it uses as much as digits as its factorization.

999105937939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 167403915, while the sum is 73.

The spelling of 999105937939 in words is "nine hundred ninety-nine billion, one hundred five million, nine hundred thirty-seven thousand, nine hundred thirty-nine".