43648312587420 has 192 divisors, whose sum is σ = 134019080810496. Its totient is φ = 10570776330240.

The previous prime is 43648312587389. The next prime is 43648312587457. The reversal of 43648312587420 is 2478521384634.

It is a happy number.

43648312587420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3008077 + ... + 9815556.

It is an arithmetic number, because the mean of its divisors is an integer number (698016045888).

Almost surely, 2^{43648312587420} is an apocalyptic number.

It is an amenable number.

43648312587420 is an abundant number, since it is smaller than the sum of its proper divisors (90370768223076).

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

43648312587420 is a wasteful number, since it uses less digits than its factorization.

43648312587420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12823780 (or 12823778 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 57.

The spelling of 43648312587420 in words is "forty-three trillion, six hundred forty-eight billion, three hundred twelve million, five hundred eighty-seven thousand, four hundred twenty".