999999949013759 has 2 divisors, whose sum is σ = 999999949013760. Its totient is φ = 999999949013758.

The previous prime is 999999949013731. The next prime is 999999949013831. The reversal of 999999949013759 is 957310949999999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999999949013759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999999949013729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999974506879 + 499999974506880.

It is an arithmetic number, because the mean of its divisors is an integer number (499999974506880).

Almost surely, 2^{999999949013759} is an apocalyptic number.

999999949013759 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999949013759 is an equidigital number, since it uses as much as digits as its factorization.

999999949013759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162716605380, while the sum is 101.

The spelling of 999999949013759 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred forty-nine million, thirteen thousand, seven hundred fifty-nine".