866763832003672 has 32 divisors (see below), whose sum is σ = 1645316675679600. Its totient is φ = 428016235838464.

The previous prime is 866763832003603. The next prime is 866763832003673. The reversal of 866763832003672 is 276300238367668.

It is a junction number, because it is equal to n+sod(n) for n = 866763832003598 and 866763832003607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866763832003673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217861393 + ... + 221804224.

Almost surely, 2^{866763832003672} is an apocalyptic number.

It is an amenable number.

866763832003672 is a deficient number, since it is larger than the sum of its proper divisors (778552843675928).

866763832003672 is a wasteful number, since it uses less digits than its factorization.

866763832003672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439668675 (or 439668671 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 67.

The spelling of 866763832003672 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, eight hundred thirty-two million, three thousand, six hundred seventy-two".