42775766670443 has 2 divisors, whose sum is σ = 42775766670444. Its totient is φ = 42775766670442.

The previous prime is 42775766670341. The next prime is 42775766670509. The reversal of 42775766670443 is 34407666757724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42775766670443 - 2¹⁴ = 42775766654059 is a prime.

It is not a weakly prime, because it can be changed into another prime (42775766670643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21387883335221 + 21387883335222.

It is an arithmetic number, because the mean of its divisors is an integer number (21387883335222).

Almost surely, 2^{42775766670443} is an apocalyptic number.

42775766670443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42775766670443 is an equidigital number, since it uses as much as digits as its factorization.

42775766670443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995742720, while the sum is 68.

The spelling of 42775766670443 in words is "forty-two trillion, seven hundred seventy-five billion, seven hundred sixty-six million, six hundred seventy thousand, four hundred forty-three".