91782342863 has 8 divisors (see below), whose sum is σ = 92077279632. Its totient is φ = 91487581696.

The previous prime is 91782342829. The next prime is 91782342893. The reversal of 91782342863 is 36824328719.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91782342863 - 2¹⁰ = 91782341839 is a prime.

It is a super-2 number, since 2×91782342863² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91782342803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046381 + ... + 1130697.

It is an arithmetic number, because the mean of its divisors is an integer number (11509659954).

Almost surely, 2^91782342863 is an apocalyptic number.

91782342863 is a deficient number, since it is larger than the sum of its proper divisors (294936769).

91782342863 is a wasteful number, since it uses less digits than its factorization.

91782342863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87801.

The product of its digits is 3483648, while the sum is 53.

The spelling of 91782342863 in words is "ninety-one billion, seven hundred eighty-two million, three hundred forty-two thousand, eight hundred sixty-three".