43606564120643 has 2 divisors, whose sum is σ = 43606564120644. Its totient is φ = 43606564120642.

The previous prime is 43606564120601. The next prime is 43606564120733. The reversal of 43606564120643 is 34602146560634.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43606564120643 - 2²² = 43606559926339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43606564120591 and 43606564120600.

It is not a weakly prime, because it can be changed into another prime (43606564120043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21803282060321 + 21803282060322.

It is an arithmetic number, because the mean of its divisors is an integer number (21803282060322).

Almost surely, 2^{43606564120643} is an apocalyptic number.

43606564120643 is a deficient number, since it is larger than the sum of its proper divisors (1).

43606564120643 is an equidigital number, since it uses as much as digits as its factorization.

43606564120643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 43606564120643 in words is "forty-three trillion, six hundred six billion, five hundred sixty-four million, one hundred twenty thousand, six hundred forty-three".