11546491637 has 2 divisors, whose sum is σ = 11546491638. Its totient is φ = 11546491636.

The previous prime is 11546491591. The next prime is 11546491741. The reversal of 11546491637 is 73619464511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10493748721 + 1052742916 = 102439^2 + 32446^2 .

It is a cyclic number.

It is not a de Polignac number, because 11546491637 - 2²⁴ = 11529714421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11546491591 and 11546491600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11546491037) 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 as a sum of consecutive naturals, namely, 5773245818 + 5773245819.

It is an arithmetic number, because the mean of its divisors is an integer number (5773245819).

Almost surely, 2^11546491637 is an apocalyptic number.

It is an amenable number.

11546491637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11546491637 is an equidigital number, since it uses as much as digits as its factorization.

11546491637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The spelling of 11546491637 in words is "eleven billion, five hundred forty-six million, four hundred ninety-one thousand, six hundred thirty-seven".