42775766670589 has 2 divisors, whose sum is σ = 42775766670590. Its totient is φ = 42775766670588.

The previous prime is 42775766670541. The next prime is 42775766670599. The reversal of 42775766670589 is 98507666757724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23023519748089 + 19752246922500 = 4798283^2 + 4444350^2 .

It is a cyclic number.

It is not a de Polignac number, because 42775766670589 - 2²³ = 42775758281981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42775766670509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387883335294 + 21387883335295.

It is an arithmetic number, because the mean of its divisors is an integer number (21387883335295).

Almost surely, 2^{42775766670589} is an apocalyptic number.

It is an amenable number.

42775766670589 is a deficient number, since it is larger than the sum of its proper divisors (1).

42775766670589 is an equidigital number, since it uses as much as digits as its factorization.

42775766670589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7468070400, while the sum is 79.

The spelling of 42775766670589 in words is "forty-two trillion, seven hundred seventy-five billion, seven hundred sixty-six million, six hundred seventy thousand, five hundred eighty-nine".