866788805170284 has 48 divisors (see below), whose sum is σ = 2051757791397888. Its totient is φ = 284756912788608.

The previous prime is 866788805170283. The next prime is 866788805170319. The reversal of 866788805170284 is 482071508887668.

It is a happy number.

It is a hoax number, since the sum of its digits (78) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (866788805170283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371665332 + ... + 373990235.

It is an arithmetic number, because the mean of its divisors is an integer number (42744953987456).

Almost surely, 2^{866788805170284} is an apocalyptic number.

It is an amenable number.

866788805170284 is an abundant number, since it is smaller than the sum of its proper divisors (1184968986227604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866788805170284 is a wasteful number, since it uses less digits than its factorization.

866788805170284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745656974 (or 745656972 counting only the distinct ones).

The product of its (nonzero) digits is 2312110080, while the sum is 78.

The spelling of 866788805170284 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, eight hundred five million, one hundred seventy thousand, two hundred eighty-four".