9991703404511 has 2 divisors, whose sum is σ = 9991703404512. Its totient is φ = 9991703404510.

The previous prime is 9991703404493. The next prime is 9991703404531. The reversal of 9991703404511 is 1154043071999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9991703404511 - 2²⁶ = 9991636295647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9991703404531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995851702255 + 4995851702256.

It is an arithmetic number, because the mean of its divisors is an integer number (4995851702256).

Almost surely, 2^{9991703404511} is an apocalyptic number.

9991703404511 is a deficient number, since it is larger than the sum of its proper divisors (1).

9991703404511 is an equidigital number, since it uses as much as digits as its factorization.

9991703404511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 9991703404511 in words is "nine trillion, nine hundred ninety-one billion, seven hundred three million, four hundred four thousand, five hundred eleven".