866078344711 has 12 divisors (see below), whose sum is σ = 932303825856. Its totient is φ = 801769672320.

The previous prime is 866078344667. The next prime is 866078344721. The reversal of 866078344711 is 117443870668.

It is a de Polignac number, because none of the positive numbers 2^k-866078344711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866078344721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6782455 + ... + 6908968.

It is an arithmetic number, because the mean of its divisors is an integer number (77691985488).

Almost surely, 2^866078344711 is an apocalyptic number.

866078344711 is a deficient number, since it is larger than the sum of its proper divisors (66225481145).

866078344711 is a wasteful number, since it uses less digits than its factorization.

866078344711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691562 (or 13691501 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 866078344711 in words is "eight hundred sixty-six billion, seventy-eight million, three hundred forty-four thousand, seven hundred eleven".