43581648726053 has 2 divisors, whose sum is σ = 43581648726054. Its totient is φ = 43581648726052.

The previous prime is 43581648725929. The next prime is 43581648726079. The reversal of 43581648726053 is 35062784618534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25141168725409 + 18440480000644 = 5014097^2 + 4294238^2 .

It is a cyclic number.

It is not a de Polignac number, because 43581648726053 - 2²⁴ = 43581631948837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43581648729053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21790824363026 + 21790824363027.

It is an arithmetic number, because the mean of its divisors is an integer number (21790824363027).

Almost surely, 2^{43581648726053} is an apocalyptic number.

It is an amenable number.

43581648726053 is a deficient number, since it is larger than the sum of its proper divisors (1).

43581648726053 is an equidigital number, since it uses as much as digits as its factorization.

43581648726053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116121600, while the sum is 62.

The spelling of 43581648726053 in words is "forty-three trillion, five hundred eighty-one billion, six hundred forty-eight million, seven hundred twenty-six thousand, fifty-three".