11976832091537 has 12 divisors (see below), whose sum is σ = 12407260395660. Its totient is φ = 11560861251072.

The previous prime is 11976832091503. The next prime is 11976832091591. The reversal of 11976832091537 is 73519023867911.

It is a Cunningham number, because it is equal to 3460756²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 28465088656 + 11948367002881 = 168716^2 + 3456641^2 .

It is not a de Polignac number, because 11976832091537 - 2⁶ = 11976832091473 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 11976832091537.

It is not an unprimeable number, because it can be changed into a prime (11976832091137) 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 11 ways as a sum of consecutive naturals, for example, 1439693 + ... + 5101605.

It is an arithmetic number, because the mean of its divisors is an integer number (1033938366305).

Almost surely, 2^{11976832091537} is an apocalyptic number.

It is an amenable number.

11976832091537 is a deficient number, since it is larger than the sum of its proper divisors (430428304123).

11976832091537 is an equidigital number, since it uses as much as digits as its factorization.

11976832091537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665860 (or 3665831 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 62.

The spelling of 11976832091537 in words is "eleven trillion, nine hundred seventy-six billion, eight hundred thirty-two million, ninety-one thousand, five hundred thirty-seven".