2445312131540 has 12 divisors (see below), whose sum is σ = 5135155476276. Its totient is φ = 978124852608.

The previous prime is 2445312131473. The next prime is 2445312131567. The reversal of 2445312131540 is 451312135442.

2445312131540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1132261990084 + 1313050141456 = 1064078^2 + 1145884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2445312131540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61132803269 + ... + 61132803308.

It is an arithmetic number, because the mean of its divisors is an integer number (427929623023).

Almost surely, 2^{2445312131540} is an apocalyptic number.

2445312131540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445312131540 is an abundant number, since it is smaller than the sum of its proper divisors (2689843344736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2445312131540 is a wasteful number, since it uses less digits than its factorization.

2445312131540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122265606586 (or 122265606584 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 2445312131540 its reverse (451312135442), we get a palindrome (2896624266982).

The spelling of 2445312131540 in words is "two trillion, four hundred forty-five billion, three hundred twelve million, one hundred thirty-one thousand, five hundred forty".