45642531243540 has 288 divisors, whose sum is σ = 162245040177024. Its totient is φ = 9480310640640.

The previous prime is 45642531243509. The next prime is 45642531243563. The reversal of 45642531243540 is 4534213524654.

It is a self number, because there is not a number n which added to its sum of digits gives 45642531243540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 79691472 + ... + 80262168.

It is an arithmetic number, because the mean of its divisors is an integer number (563350833948).

Almost surely, 2^{45642531243540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45642531243540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81122520088512).

45642531243540 is an abundant number, since it is smaller than the sum of its proper divisors (116602508933484).

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

45642531243540 is a wasteful number, since it uses less digits than its factorization.

45642531243540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573207 (or 573198 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 48.

The spelling of 45642531243540 in words is "forty-five trillion, six hundred forty-two billion, five hundred thirty-one million, two hundred forty-three thousand, five hundred forty".