999936963931 has 2 divisors, whose sum is σ = 999936963932. Its totient is φ = 999936963930.

The previous prime is 999936963881. The next prime is 999936964001. The reversal of 999936963931 is 139369639999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999936963931 - 2¹¹ = 999936961883 is a prime.

It is a super-2 number, since 2×999936963931² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (999936963131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499968481965 + 499968481966.

It is an arithmetic number, because the mean of its divisors is an integer number (499968481966).

Almost surely, 2^999936963931 is an apocalyptic number.

999936963931 is a deficient number, since it is larger than the sum of its proper divisors (1).

999936963931 is an equidigital number, since it uses as much as digits as its factorization.

999936963931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516560652, while the sum is 76.

The spelling of 999936963931 in words is "nine hundred ninety-nine billion, nine hundred thirty-six million, nine hundred sixty-three thousand, nine hundred thirty-one".