266479922747 has 2 divisors, whose sum is σ = 266479922748. Its totient is φ = 266479922746.

The previous prime is 266479922719. The next prime is 266479922789. The reversal of 266479922747 is 747229974662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266479922747 - 2²² = 266475728443 is a prime.

It is not a weakly prime, because it can be changed into another prime (266479922717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133239961373 + 133239961374.

It is an arithmetic number, because the mean of its divisors is an integer number (133239961374).

Almost surely, 2^266479922747 is an apocalyptic number.

266479922747 is a deficient number, since it is larger than the sum of its proper divisors (1).

266479922747 is an equidigital number, since it uses as much as digits as its factorization.

266479922747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128024064, while the sum is 65.

The spelling of 266479922747 in words is "two hundred sixty-six billion, four hundred seventy-nine million, nine hundred twenty-two thousand, seven hundred forty-seven".