866760720457874 has 8 divisors (see below), whose sum is σ = 1418335724385648. Its totient is φ = 393982145662660.

The previous prime is 866760720457783. The next prime is 866760720457909. The reversal of 866760720457874 is 478754027067668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 866760720457795 and 866760720457804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19699107283112 + ... + 19699107283155.

It is an arithmetic number, because the mean of its divisors is an integer number (177291965548206).

Almost surely, 2^{866760720457874} is an apocalyptic number.

866760720457874 is a deficient number, since it is larger than the sum of its proper divisors (551575003927774).

866760720457874 is a wasteful number, since it uses less digits than its factorization.

866760720457874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39398214566280.

The product of its (nonzero) digits is 5310627840, while the sum is 77.

The spelling of 866760720457874 in words is "eight hundred sixty-six trillion, seven hundred sixty billion, seven hundred twenty million, four hundred fifty-seven thousand, eight hundred seventy-four".