866441367044882 has 8 divisors (see below), whose sum is σ = 1299664199757756. Its totient is φ = 433219967125632.

The previous prime is 866441367044873. The next prime is 866441367044893. The reversal of 866441367044882 is 288440763144668.

It can be written as a sum of positive squares in 2 ways, for example, as 722788653403441 + 143652713641441 = 26884729^2 + 11985521^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356685323 + ... + 359106254.

Almost surely, 2^{866441367044882} is an apocalyptic number.

866441367044882 is a deficient number, since it is larger than the sum of its proper divisors (433222832712874).

866441367044882 is a wasteful number, since it uses less digits than its factorization.

866441367044882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716396812.

The product of its (nonzero) digits is 1189085184, while the sum is 71.

The spelling of 866441367044882 in words is "eight hundred sixty-six trillion, four hundred forty-one billion, three hundred sixty-seven million, forty-four thousand, eight hundred eighty-two".