266793283440779 has 4 divisors (see below), whose sum is σ = 280835035200840. Its totient is φ = 252751531680720.

The previous prime is 266793283440641. The next prime is 266793283440809. The reversal of 266793283440779 is 977044382397662.

266793283440779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266793283440779 is a prime.

It is a super-2 number, since 2×266793283440779² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266793283443779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7020875880002 + ... + 7020875880039.

It is an arithmetic number, because the mean of its divisors is an integer number (70208758800210).

Almost surely, 2^{266793283440779} is an apocalyptic number.

266793283440779 is a deficient number, since it is larger than the sum of its proper divisors (14041751760061).

266793283440779 is a wasteful number, since it uses less digits than its factorization.

266793283440779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041751760060.

The product of its (nonzero) digits is 4608866304, while the sum is 77.

The spelling of 266793283440779 in words is "two hundred sixty-six trillion, seven hundred ninety-three billion, two hundred eighty-three million, four hundred forty thousand, seven hundred seventy-nine".