43648780543 has 2 divisors, whose sum is σ = 43648780544. Its totient is φ = 43648780542.

The previous prime is 43648780537. The next prime is 43648780589. The reversal of 43648780543 is 34508784634.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43648780543 - 2¹³ = 43648772351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43648787543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21824390271 + 21824390272.

It is an arithmetic number, because the mean of its divisors is an integer number (21824390272).

Almost surely, 2^43648780543 is an apocalyptic number.

43648780543 is a deficient number, since it is larger than the sum of its proper divisors (1).

43648780543 is an equidigital number, since it uses as much as digits as its factorization.

43648780543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 52.

The spelling of 43648780543 in words is "forty-three billion, six hundred forty-eight million, seven hundred eighty thousand, five hundred forty-three".