687379885180 has 48 divisors (see below), whose sum is σ = 1484104809600. Its totient is φ = 267295804928.

The previous prime is 687379885141. The next prime is 687379885201. The reversal of 687379885180 is 81588973786.

It is a super-2 number, since 2×687379885180² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2313817 + ... + 2593936.

It is an arithmetic number, because the mean of its divisors is an integer number (30918850200).

Almost surely, 2^687379885180 is an apocalyptic number.

It is an amenable number.

687379885180 is an abundant number, since it is smaller than the sum of its proper divisors (796724924420).

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

687379885180 is a wasteful number, since it uses less digits than its factorization.

687379885180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907958 (or 4907956 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 70.

The spelling of 687379885180 in words is "six hundred eighty-seven billion, three hundred seventy-nine million, eight hundred eighty-five thousand, one hundred eighty".