863708069889 has 24 divisors (see below), whose sum is σ = 1428410443200. Its totient is φ = 492645168288.

The previous prime is 863708069849. The next prime is 863708069927. The reversal of 863708069889 is 988960807368.

It is not a de Polignac number, because 863708069889 - 2¹⁵ = 863708037121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (863708069849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12497214 + ... + 12566135.

It is an arithmetic number, because the mean of its divisors is an integer number (59517101800).

Almost surely, 2^863708069889 is an apocalyptic number.

It is an amenable number.

863708069889 is a deficient number, since it is larger than the sum of its proper divisors (564702373311).

863708069889 is a wasteful number, since it uses less digits than its factorization.

863708069889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25063909 (or 25063906 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 863708069889 in words is "eight hundred sixty-three billion, seven hundred eight million, sixty-nine thousand, eight hundred eighty-nine".