12440085547645 has 16 divisors (see below), whose sum is σ = 17060906251008. Its totient is φ = 8530235625600.

The previous prime is 12440085547639. The next prime is 12440085547697. The reversal of 12440085547645 is 54674558004421.

It is a happy number.

It is not a de Polignac number, because 12440085547645 - 2²¹ = 12440083450493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 568945 + ... + 5020345.

It is an arithmetic number, because the mean of its divisors is an integer number (1066306640688).

Almost surely, 2^{12440085547645} is an apocalyptic number.

It is an amenable number.

12440085547645 is a deficient number, since it is larger than the sum of its proper divisors (4620820703363).

12440085547645 is an equidigital number, since it uses as much as digits as its factorization.

12440085547645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531260.

The product of its (nonzero) digits is 21504000, while the sum is 55.

The spelling of 12440085547645 in words is "twelve trillion, four hundred forty billion, eighty-five million, five hundred forty-seven thousand, six hundred forty-five".