91846436134912 has 56 divisors (see below), whose sum is σ = 183877707568716. Its totient is φ = 45874203328512.

The previous prime is 91846436134909. The next prime is 91846436134913. The reversal of 91846436134912 is 21943163464819.

It can be written as a sum of positive squares in 2 ways, for example, as 91815030624256 + 31405510656 = 9582016^2 + 177216^2 .

It is not an unprimeable number, because it can be changed into a prime (91846436134913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693128 + ... + 13658680.

Almost surely, 2^{91846436134912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91846436134912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91938853784358).

91846436134912 is an abundant number, since it is smaller than the sum of its proper divisors (92031271433804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91846436134912 is an equidigital number, since it uses as much as digits as its factorization.

91846436134912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966516 (or 11966492 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 61.

The spelling of 91846436134912 in words is "ninety-one trillion, eight hundred forty-six billion, four hundred thirty-six million, one hundred thirty-four thousand, nine hundred twelve".