866763832003731 has 12 divisors (see below), whose sum is σ = 1252014694866208. Its totient is φ = 577832173246224.

The previous prime is 866763832003673. The next prime is 866763832003757. The reversal of 866763832003731 is 137300238367668.

It is not a de Polignac number, because 866763832003731 - 2⁷ = 866763832003603 is a prime.

It is a super-2 number, since 2×866763832003731² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866763832003331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 864589780 + ... + 865591713.

Almost surely, 2^{866763832003731} is an apocalyptic number.

866763832003731 is a deficient number, since it is larger than the sum of its proper divisors (385250862862477).

866763832003731 is a wasteful number, since it uses less digits than its factorization.

866763832003731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730237162 (or 1730237159 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 63.

The spelling of 866763832003731 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, eight hundred thirty-two million, three thousand, seven hundred thirty-one".