91704268123 has 16 divisors (see below), whose sum is σ = 100282454496. Its totient is φ = 83347764480.

The previous prime is 91704268099. The next prime is 91704268141. The reversal of 91704268123 is 32186240719.

It is a cyclic number.

It is not a de Polignac number, because 91704268123 - 2¹³ = 91704259931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91704268123.

It is not an unprimeable number, because it can be changed into a prime (91704262123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474753 + ... + 639373.

It is an arithmetic number, because the mean of its divisors is an integer number (6267653406).

Almost surely, 2^91704268123 is an apocalyptic number.

91704268123 is a deficient number, since it is larger than the sum of its proper divisors (8578186373).

91704268123 is a wasteful number, since it uses less digits than its factorization.

91704268123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165294.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 91704268123 in words is "ninety-one billion, seven hundred four million, two hundred sixty-eight thousand, one hundred twenty-three".