91793581383 has 16 divisors (see below), whose sum is σ = 139884692480. Its totient is φ = 52450190496.

The previous prime is 91793581309. The next prime is 91793581423. The reversal of 91793581383 is 38318539719.

It is not a de Polignac number, because 91793581383 - 2¹³ = 91793573191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91793581183) 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, 229266 + ... + 485952.

It is an arithmetic number, because the mean of its divisors is an integer number (8742793280).

Almost surely, 2^91793581383 is an apocalyptic number.

91793581383 is a deficient number, since it is larger than the sum of its proper divisors (48091111097).

91793581383 is a wasteful number, since it uses less digits than its factorization.

91793581383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273726.

The product of its digits is 4898880, while the sum is 57.

The spelling of 91793581383 in words is "ninety-one billion, seven hundred ninety-three million, five hundred eighty-one thousand, three hundred eighty-three".