43605791854253 has 2 divisors, whose sum is σ = 43605791854254. Its totient is φ = 43605791854252.

The previous prime is 43605791854243. The next prime is 43605791854349. The reversal of 43605791854253 is 35245819750634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23196196635049 + 20409595219204 = 4816243^2 + 4517698^2 .

It is a cyclic number.

It is not a de Polignac number, because 43605791854253 - 2¹⁰ = 43605791853229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43605791854213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21802895927126 + 21802895927127.

It is an arithmetic number, because the mean of its divisors is an integer number (21802895927127).

It is a 1-persistent number, because it is pandigital, but 2⋅43605791854253 = 87211583708506 is not.

Almost surely, 2^{43605791854253} is an apocalyptic number.

It is an amenable number.

43605791854253 is a deficient number, since it is larger than the sum of its proper divisors (1).

43605791854253 is an equidigital number, since it uses as much as digits as its factorization.

43605791854253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864000, while the sum is 62.

The spelling of 43605791854253 in words is "forty-three trillion, six hundred five billion, seven hundred ninety-one million, eight hundred fifty-four thousand, two hundred fifty-three".