266792761 has 2 divisors, whose sum is σ = 266792762. Its totient is φ = 266792760.

The previous prime is 266792731. The next prime is 266792767. The reversal of 266792761 is 167297662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232745536 + 34047225 = 15256^2 + 5835^2 .

It is a cyclic number.

It is not a de Polignac number, because 266792761 - 2²¹ = 264695609 is a prime.

It is not a weakly prime, because it can be changed into another prime (266792767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133396380 + 133396381.

It is an arithmetic number, because the mean of its divisors is an integer number (133396381).

Almost surely, 2^266792761 is an apocalyptic number.

It is an amenable number.

266792761 is a deficient number, since it is larger than the sum of its proper divisors (1).

266792761 is an equidigital number, since it uses as much as digits as its factorization.

266792761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The square root of 266792761 is about 16333.7919969614. The cubic root of 266792761 is about 643.7610260342.

The spelling of 266792761 in words is "two hundred sixty-six million, seven hundred ninety-two thousand, seven hundred sixty-one".