687506319372 has 24 divisors (see below), whose sum is σ = 1609339560192. Its totient is φ = 228431894800.

The previous prime is 687506319343. The next prime is 687506319373. The reversal of 687506319372 is 273913605786.

It is not an unprimeable number, because it can be changed into a prime (687506319373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92105904 + ... + 92113367.

It is an arithmetic number, because the mean of its divisors is an integer number (67055815008).

Almost surely, 2^687506319372 is an apocalyptic number.

It is an amenable number.

687506319372 is an abundant number, since it is smaller than the sum of its proper divisors (921833240820).

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

687506319372 is a wasteful number, since it uses less digits than its factorization.

687506319372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184219589 (or 184219587 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 687506319372 in words is "six hundred eighty-seven billion, five hundred six million, three hundred nineteen thousand, three hundred seventy-two".