2544222112545 has 32 divisors (see below), whose sum is σ = 4093997281920. Its totient is φ = 1349173015040.

The previous prime is 2544222112543. The next prime is 2544222112609. The reversal of 2544222112545 is 5452112224452.

It is not a de Polignac number, because 2544222112545 - 2¹ = 2544222112543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2544222112543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23738317 + ... + 23845253.

It is an arithmetic number, because the mean of its divisors is an integer number (127937415060).

Almost surely, 2^{2544222112545} is an apocalyptic number.

It is an amenable number.

2544222112545 is a deficient number, since it is larger than the sum of its proper divisors (1549775169375).

2544222112545 is a wasteful number, since it uses less digits than its factorization.

2544222112545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115985.

The product of its digits is 256000, while the sum is 39.

Adding to 2544222112545 its reverse (5452112224452), we get a palindrome (7996334336997).

The spelling of 2544222112545 in words is "two trillion, five hundred forty-four billion, two hundred twenty-two million, one hundred twelve thousand, five hundred forty-five".