12454747560181 has 8 divisors (see below), whose sum is σ = 12525403154264. Its totient is φ = 12384112239360.

The previous prime is 12454747560173. The next prime is 12454747560197. The reversal of 12454747560181 is 18106574745421.

It can be written as a sum of positive squares in 4 ways, for example, as 3045866148081 + 9408881412100 = 1745241^2 + 3067390^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12454747560181 - 2³ = 12454747560173 is a prime.

It is a super-2 number, since 2×12454747560181² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454747560121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3835296 + ... + 6294361.

It is an arithmetic number, because the mean of its divisors is an integer number (1565675394283).

Almost surely, 2^{12454747560181} is an apocalyptic number.

It is an amenable number.

12454747560181 is a deficient number, since it is larger than the sum of its proper divisors (70655594083).

12454747560181 is a wasteful number, since it uses less digits than its factorization.

12454747560181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10136631.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 12454747560181 in words is "twelve trillion, four hundred fifty-four billion, seven hundred forty-seven million, five hundred sixty thousand, one hundred eighty-one".