687585222336 has 56 divisors (see below), whose sum is σ = 1820814315184. Its totient is φ = 228996218880.

The previous prime is 687585222283. The next prime is 687585222391. The reversal of 687585222336 is 633222585786.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331605 + ... + 1774356.

Almost surely, 2^687585222336 is an apocalyptic number.

It is an amenable number.

687585222336 is an abundant number, since it is smaller than the sum of its proper divisors (1133229092848).

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

687585222336 is a wasteful number, since it uses less digits than its factorization.

687585222336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107129 (or 3107119 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 57.

The spelling of 687585222336 in words is "six hundred eighty-seven billion, five hundred eighty-five million, two hundred twenty-two thousand, three hundred thirty-six".