12354927786543 has 8 divisors (see below), whose sum is σ = 16823731454208. Its totient is φ = 8061371321624.

The previous prime is 12354927786407. The next prime is 12354927786547. The reversal of 12354927786543 is 34568772945321.

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 12354927786543 - 2¹⁷ = 12354927655471 is a prime.

It is a super-2 number, since 2×12354927786543² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12354927786547) 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, 43811800521 + ... + 43811800802.

It is an arithmetic number, because the mean of its divisors is an integer number (2102966431776).

Almost surely, 2^{12354927786543} is an apocalyptic number.

12354927786543 is a deficient number, since it is larger than the sum of its proper divisors (4468803667665).

12354927786543 is an equidigital number, since it uses as much as digits as its factorization.

12354927786543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87623601373.

The product of its digits is 304819200, while the sum is 66.

The spelling of 12354927786543 in words is "twelve trillion, three hundred fifty-four billion, nine hundred twenty-seven million, seven hundred eighty-six thousand, five hundred forty-three".