11546849957481 has 12 divisors (see below), whose sum is σ = 16678814131252. Its totient is φ = 7697885728896.

The previous prime is 11546849957473. The next prime is 11546849957501. The reversal of 11546849957481 is 18475994864511.

11546849957481 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 6 + 8 + 4 + 99 + 57 + 481 = 666.

11546849957481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7518234963600 + 4028614993881 = 2741940^2 + 2007141^2 .

It is not a de Polignac number, because 11546849957481 - 2³ = 11546849957473 is a prime.

It is a super-2 number, since 2×11546849957481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11546849957471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6719925 + ... + 8261421.

Almost surely, 2^{11546849957481} is an apocalyptic number.

It is an amenable number.

11546849957481 is a deficient number, since it is larger than the sum of its proper divisors (5131964173771).

11546849957481 is a wasteful number, since it uses less digits than its factorization.

11546849957481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373800 (or 2373797 counting only the distinct ones).

The product of its digits is 348364800, while the sum is 72.

The spelling of 11546849957481 in words is "eleven trillion, five hundred forty-six billion, eight hundred forty-nine million, nine hundred fifty-seven thousand, four hundred eighty-one".