687375673371 has 16 divisors (see below), whose sum is σ = 1021170931200. Its totient is φ = 456973978824.

The previous prime is 687375673367. The next prime is 687375673417. The reversal of 687375673371 is 173376573786.

687375673371 is a `hidden beast` number, since 6 + 8 + 7 + 37 + 567 + 3 + 37 + 1 = 666.

It is not a de Polignac number, because 687375673371 - 2² = 687375673367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687375673299 and 687375673308.

It is not an unprimeable number, because it can be changed into a prime (687375671371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35447631 + ... + 35467016.

It is an arithmetic number, because the mean of its divisors is an integer number (63823183200).

Almost surely, 2^687375673371 is an apocalyptic number.

687375673371 is a deficient number, since it is larger than the sum of its proper divisors (333795257829).

687375673371 is a wasteful number, since it uses less digits than its factorization.

687375673371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70915015 (or 70915009 counting only the distinct ones).

The product of its digits is 93350880, while the sum is 63.

The spelling of 687375673371 in words is "six hundred eighty-seven billion, three hundred seventy-five million, six hundred seventy-three thousand, three hundred seventy-one".