2545040243344 has 10 divisors (see below), whose sum is σ = 4931015471510. Its totient is φ = 1272520121664.

The previous prime is 2545040243323. The next prime is 2545040243359. The reversal of 2545040243344 is 4433420405452.

It can be written as a sum of positive squares in only one way, i.e., 2112918073744 + 432122169600 = 1453588^2 + 657360^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2545040243297 and 2545040243306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79532507589 + ... + 79532507620.

It is an arithmetic number, because the mean of its divisors is an integer number (493101547151).

Almost surely, 2^{2545040243344} is an apocalyptic number.

It is an amenable number.

2545040243344 is a deficient number, since it is larger than the sum of its proper divisors (2385975228166).

2545040243344 is a wasteful number, since it uses less digits than its factorization.

2545040243344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159065015217 (or 159065015211 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 40.

Adding to 2545040243344 its reverse (4433420405452), we get a palindrome (6978460648796).

The spelling of 2545040243344 in words is "two trillion, five hundred forty-five billion, forty million, two hundred forty-three thousand, three hundred forty-four".