43266573872077 has 2 divisors, whose sum is σ = 43266573872078. Its totient is φ = 43266573872076.

The previous prime is 43266573871981. The next prime is 43266573872143. The reversal of 43266573872077 is 77027837566234.

43266573872077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25452721214761 + 17813852657316 = 5045069^2 + 4220646^2 .

It is a cyclic number.

It is not a de Polignac number, because 43266573872077 - 2²³ = 43266565483469 is a prime.

It is a super-2 number, since 2×43266573872077² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43266573872677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21633286936038 + 21633286936039.

It is an arithmetic number, because the mean of its divisors is an integer number (21633286936039).

Almost surely, 2^{43266573872077} is an apocalyptic number.

It is an amenable number.

43266573872077 is a deficient number, since it is larger than the sum of its proper divisors (1).

43266573872077 is an equidigital number, since it uses as much as digits as its factorization.

43266573872077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497871360, while the sum is 67.

The spelling of 43266573872077 in words is "forty-three trillion, two hundred sixty-six billion, five hundred seventy-three million, eight hundred seventy-two thousand, seventy-seven".