999911777119999 has 2 divisors, whose sum is σ = 999911777120000. Its totient is φ = 999911777119998.

The previous prime is 999911777119993. The next prime is 999911777120027.

999911777119999 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 999911777119999 - 2³ = 999911777119991 is a prime.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 999911777119999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999911777119991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499955888559999 + 499955888560000.

It is an arithmetic number, because the mean of its divisors is an integer number (499955888560000).

Almost surely, 2^{999911777119999} is an apocalyptic number.

999911777119999 is a deficient number, since it is larger than the sum of its proper divisors (1).

999911777119999 is an equidigital number, since it uses as much as digits as its factorization.

999911777119999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14765025303, while the sum is 97.

The spelling of 999911777119999 in words is "nine hundred ninety-nine trillion, nine hundred eleven billion, seven hundred seventy-seven million, one hundred nineteen thousand, nine hundred ninety-nine".