866786486532472 has 64 divisors (see below), whose sum is σ = 1774833570165600. Its totient is φ = 393580300861440.

The previous prime is 866786486532443. The next prime is 866786486532503. The reversal of 866786486532472 is 274235684687668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1562195448 + ... + 1562750200.

Almost surely, 2^{866786486532472} is an apocalyptic number.

It is an amenable number.

866786486532472 is an abundant number, since it is smaller than the sum of its proper divisors (908047083633128).

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

866786486532472 is a wasteful number, since it uses less digits than its factorization.

866786486532472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573376 (or 573372 counting only the distinct ones).

The product of its digits is 31213486080, while the sum is 82.

The spelling of 866786486532472 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, four hundred eighty-six million, five hundred thirty-two thousand, four hundred seventy-two".