999054975379 has 2 divisors, whose sum is σ = 999054975380. Its totient is φ = 999054975378.

The previous prime is 999054975353. The next prime is 999054975491. The reversal of 999054975379 is 973579450999.

It is a weak prime.

It is an emirp because it is prime and its reverse (973579450999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999054975379 - 2⁹ = 999054974867 is a prime.

It is a super-2 number, since 2×999054975379² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (999054475379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499527487689 + 499527487690.

It is an arithmetic number, because the mean of its divisors is an integer number (499527487690).

Almost surely, 2^999054975379 is an apocalyptic number.

999054975379 is a deficient number, since it is larger than the sum of its proper divisors (1).

999054975379 is an equidigital number, since it uses as much as digits as its factorization.

999054975379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 868020300, while the sum is 76.

The spelling of 999054975379 in words is "nine hundred ninety-nine billion, fifty-four million, nine hundred seventy-five thousand, three hundred seventy-nine".