266772767 has 2 divisors, whose sum is σ = 266772768. Its totient is φ = 266772766.

The previous prime is 266772739. The next prime is 266772841. The reversal of 266772767 is 767277662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266772767 - 2⁸ = 266772511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266772167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133386383 + 133386384.

It is an arithmetic number, because the mean of its divisors is an integer number (133386384).

Almost surely, 2^266772767 is an apocalyptic number.

266772767 is a deficient number, since it is larger than the sum of its proper divisors (1).

266772767 is an equidigital number, since it uses as much as digits as its factorization.

266772767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2074464, while the sum is 50.

The square root of 266772767 is about 16333.1799414566. The cubic root of 266772767 is about 643.7449440392.

The spelling of 266772767 in words is "two hundred sixty-six million, seven hundred seventy-two thousand, seven hundred sixty-seven".