43305640817401 has 2 divisors, whose sum is σ = 43305640817402. Its totient is φ = 43305640817400.

The previous prime is 43305640817377. The next prime is 43305640817443. The reversal of 43305640817401 is 10471804650334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33384879541225 + 9920761276176 = 5777965^2 + 3149724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43305640817401 is a prime.

It is not a weakly prime, because it can be changed into another prime (43305640517401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21652820408700 + 21652820408701.

It is an arithmetic number, because the mean of its divisors is an integer number (21652820408701).

Almost surely, 2^{43305640817401} is an apocalyptic number.

It is an amenable number.

43305640817401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43305640817401 is an equidigital number, since it uses as much as digits as its factorization.

43305640817401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 43305640817401 in words is "forty-three trillion, three hundred five billion, six hundred forty million, eight hundred seventeen thousand, four hundred one".