12440085547643 has 16 divisors (see below), whose sum is σ = 13504065662976. Its totient is φ = 11391419279520.

The previous prime is 12440085547639. The next prime is 12440085547697. The reversal of 12440085547643 is 34674558004421.

It is a cyclic number.

It is not a de Polignac number, because 12440085547643 - 2² = 12440085547639 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12440085546643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13983380 + ... + 14846382.

It is an arithmetic number, because the mean of its divisors is an integer number (844004103936).

Almost surely, 2^{12440085547643} is an apocalyptic number.

12440085547643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12440085547643 is a deficient number, since it is larger than the sum of its proper divisors (1063980115333).

12440085547643 is a wasteful number, since it uses less digits than its factorization.

12440085547643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871874.

The product of its (nonzero) digits is 12902400, while the sum is 53.

The spelling of 12440085547643 in words is "twelve trillion, four hundred forty billion, eighty-five million, five hundred forty-seven thousand, six hundred forty-three".