999977648119 has 2 divisors, whose sum is σ = 999977648120. Its totient is φ = 999977648118.

The previous prime is 999977648113. The next prime is 999977648129. The reversal of 999977648119 is 911846779999.

It is a weak prime.

It is an emirp because it is prime and its reverse (911846779999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999977648119 - 2⁹ = 999977647607 is a prime.

It is a super-2 number, since 2×999977648119² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999977648113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499988824059 + 499988824060.

It is an arithmetic number, because the mean of its divisors is an integer number (499988824060).

Almost surely, 2^999977648119 is an apocalyptic number.

999977648119 is a deficient number, since it is larger than the sum of its proper divisors (1).

999977648119 is an equidigital number, since it uses as much as digits as its factorization.

999977648119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555532992, while the sum is 79.

The spelling of 999977648119 in words is "nine hundred ninety-nine billion, nine hundred seventy-seven million, six hundred forty-eight thousand, one hundred nineteen".