43654611113249 has 2 divisors, whose sum is σ = 43654611113250. Its totient is φ = 43654611113248.

The previous prime is 43654611113231. The next prime is 43654611113261. The reversal of 43654611113249 is 94231111645634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26789889051025 + 16864722062224 = 5175895^2 + 4106668^2 .

It is a cyclic number.

It is not a de Polignac number, because 43654611113249 - 2¹⁶ = 43654611047713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43654611113197 and 43654611113206.

It is not a weakly prime, because it can be changed into another prime (43654611103249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21827305556624 + 21827305556625.

It is an arithmetic number, because the mean of its divisors is an integer number (21827305556625).

Almost surely, 2^{43654611113249} is an apocalyptic number.

It is an amenable number.

43654611113249 is a deficient number, since it is larger than the sum of its proper divisors (1).

43654611113249 is an equidigital number, since it uses as much as digits as its factorization.

43654611113249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The spelling of 43654611113249 in words is "forty-three trillion, six hundred fifty-four billion, six hundred eleven million, one hundred thirteen thousand, two hundred forty-nine".