686877163084 has 48 divisors (see below), whose sum is σ = 1447072139520. Its totient is φ = 278686716480.

The previous prime is 686877163057. The next prime is 686877163121. The reversal of 686877163084 is 480361778686.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 306774 + ... + 1211554.

It is an arithmetic number, because the mean of its divisors is an integer number (30147336240).

Almost surely, 2^686877163084 is an apocalyptic number.

It is an amenable number.

686877163084 is an abundant number, since it is smaller than the sum of its proper divisors (760194976436).

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

686877163084 is a wasteful number, since it uses less digits than its factorization.

686877163084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906238 (or 906236 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 686877163084 in words is "six hundred eighty-six billion, eight hundred seventy-seven million, one hundred sixty-three thousand, eighty-four".