91713128967935 has 12 divisors (see below), whose sum is σ = 111397703329992. Its totient is φ = 72486521181168.

The previous prime is 91713128967923. The next prime is 91713128968133. The reversal of 91713128967935 is 53976982131719.

It is not a de Polignac number, because 91713128967935 - 2¹⁰ = 91713128966911 is a prime.

It is a super-2 number, since 2×91713128967935² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1331263697 + ... + 1331332586.

It is an arithmetic number, because the mean of its divisors is an integer number (9283141944166).

Almost surely, 2^{91713128967935} is an apocalyptic number.

91713128967935 is a deficient number, since it is larger than the sum of its proper divisors (19684574362057).

91713128967935 is an equidigital number, since it uses as much as digits as its factorization.

91713128967935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662596454 (or 2662596371 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 71.

The spelling of 91713128967935 in words is "ninety-one trillion, seven hundred thirteen billion, one hundred twenty-eight million, nine hundred sixty-seven thousand, nine hundred thirty-five".