43654066043383 has 2 divisors, whose sum is σ = 43654066043384. Its totient is φ = 43654066043382.

The previous prime is 43654066043369. The next prime is 43654066043407. The reversal of 43654066043383 is 38334066045634.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43654066043383 - 2⁴¹ = 41455042787831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43654066043303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21827033021691 + 21827033021692.

It is an arithmetic number, because the mean of its divisors is an integer number (21827033021692).

Almost surely, 2^{43654066043383} is an apocalyptic number.

43654066043383 is a deficient number, since it is larger than the sum of its proper divisors (1).

43654066043383 is an equidigital number, since it uses as much as digits as its factorization.

43654066043383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44789760, while the sum is 55.

The spelling of 43654066043383 in words is "forty-three trillion, six hundred fifty-four billion, sixty-six million, forty-three thousand, three hundred eighty-three".