999997403926933 has 2 divisors, whose sum is σ = 999997403926934. Its totient is φ = 999997403926932.

The previous prime is 999997403926931. The next prime is 999997403926991. The reversal of 999997403926933 is 339629304799999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 913343776810084 + 86653627116849 = 30221578^2 + 9308793^2 .

It is a cyclic number.

It is not a de Polignac number, because 999997403926933 - 2¹ = 999997403926931 is a prime.

It is a super-3 number, since 3×999997403926933³ (a number of 46 digits) contains 333 as substring.

Together with 999997403926931, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999997403926931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499998701963466 + 499998701963467.

It is an arithmetic number, because the mean of its divisors is an integer number (499998701963467).

Almost surely, 2^{999997403926933} is an apocalyptic number.

It is an amenable number.

999997403926933 is a deficient number, since it is larger than the sum of its proper divisors (1).

999997403926933 is an equidigital number, since it uses as much as digits as its factorization.

999997403926933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43391094768, while the sum is 91.

The spelling of 999997403926933 in words is "nine hundred ninety-nine trillion, nine hundred ninety-seven billion, four hundred three million, nine hundred twenty-six thousand, nine hundred thirty-three".