4240123342544 has 10 divisors (see below), whose sum is σ = 8215238976210. Its totient is φ = 2120061671264.

The previous prime is 4240123342537. The next prime is 4240123342577. The reversal of 4240123342544 is 4452433210424.

It can be written as a sum of positive squares in only one way, i.e., 3717955240000 + 522168102544 = 1928200^2 + 722612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4240123342498 and 4240123342507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132503854439 + ... + 132503854470.

It is an arithmetic number, because the mean of its divisors is an integer number (821523897621).

Almost surely, 2^{4240123342544} is an apocalyptic number.

It is an amenable number.

4240123342544 is a deficient number, since it is larger than the sum of its proper divisors (3975115633666).

4240123342544 is a wasteful number, since it uses less digits than its factorization.

4240123342544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265007708917 (or 265007708911 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 4240123342544 its reverse (4452433210424), we get a palindrome (8692556552968).

The spelling of 4240123342544 in words is "four trillion, two hundred forty billion, one hundred twenty-three million, three hundred forty-two thousand, five hundred forty-four".