266834874931 has 2 divisors, whose sum is σ = 266834874932. Its totient is φ = 266834874930.

The previous prime is 266834874899. The next prime is 266834874983. The reversal of 266834874931 is 139478438662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266834874931 - 2⁵ = 266834874899 is a prime.

It is a super-2 number, since 2×266834874931² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 266834874931.

It is not a weakly prime, because it can be changed into another prime (266834874331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133417437465 + 133417437466.

It is an arithmetic number, because the mean of its divisors is an integer number (133417437466).

Almost surely, 2^266834874931 is an apocalyptic number.

266834874931 is a deficient number, since it is larger than the sum of its proper divisors (1).

266834874931 is an equidigital number, since it uses as much as digits as its factorization.

266834874931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 61.

The spelling of 266834874931 in words is "two hundred sixty-six billion, eight hundred thirty-four million, eight hundred seventy-four thousand, nine hundred thirty-one".