866786462028884 has 12 divisors (see below), whose sum is σ = 1522236295508544. Its totient is φ = 431861806169304.

The previous prime is 866786462028863. The next prime is 866786462028901. The reversal of 866786462028884 is 488820264687668.

It is a super-3 number, since 3×866786462028884³ (a number of 46 digits) contains 333 as substring.

It is a congruent number.

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, 382856210012 + ... + 382856212275.

It is an arithmetic number, because the mean of its divisors is an integer number (126853024625712).

Almost surely, 2^{866786462028884} is an apocalyptic number.

It is an amenable number.

866786462028884 is a deficient number, since it is larger than the sum of its proper divisors (655449833479660).

866786462028884 is a wasteful number, since it uses less digits than its factorization.

866786462028884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765712422574 (or 765712422572 counting only the distinct ones).

The product of its (nonzero) digits is 19025362944, while the sum is 83.

The spelling of 866786462028884 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, four hundred sixty-two million, twenty-eight thousand, eight hundred eighty-four".