863656485982 has 16 divisors (see below), whose sum is σ = 1304132979600. Its totient is φ = 428947167168.

The previous prime is 863656485959. The next prime is 863656486001. The reversal of 863656485982 is 289584656368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619018 + ... + 1452754.

It is an arithmetic number, because the mean of its divisors is an integer number (81508311225).

Almost surely, 2^863656485982 is an apocalyptic number.

863656485982 is a deficient number, since it is larger than the sum of its proper divisors (440476493618).

863656485982 is a wasteful number, since it uses less digits than its factorization.

863656485982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837195.

The product of its digits is 597196800, while the sum is 70.

The spelling of 863656485982 in words is "eight hundred sixty-three billion, six hundred fifty-six million, four hundred eighty-five thousand, nine hundred eighty-two".