1091741807232 has 48 divisors (see below), whose sum is σ = 3141600776730. Its totient is φ = 363913935360.

The previous prime is 1091741807209. The next prime is 1091741807239. The reversal of 1091741807232 is 2327081471901.

It can be written as a sum of positive squares in only one way, i.e., 935893717056 + 155848090176 = 967416^2 + 394776^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1091741807239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 473845119 + ... + 473847422.

Almost surely, 2^{1091741807232} is an apocalyptic number.

1091741807232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1091741807232 is an abundant number, since it is smaller than the sum of its proper divisors (2049858969498).

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

1091741807232 is an equidigital number, since it uses as much as digits as its factorization.

1091741807232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947692561 (or 947692546 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 1091741807232 in words is "one trillion, ninety-one billion, seven hundred forty-one million, eight hundred seven thousand, two hundred thirty-two".