687059034368 has 144 divisors (see below), whose sum is σ = 1596437256960. Its totient is φ = 289026662400.

The previous prime is 687059034349. The next prime is 687059034373. The reversal of 687059034368 is 863430950786.

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, 29124338 + ... + 29147918.

It is an arithmetic number, because the mean of its divisors is an integer number (11086369840).

Almost surely, 2^687059034368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687059034368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798218628480).

687059034368 is an abundant number, since it is smaller than the sum of its proper divisors (909378222592).

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

687059034368 is a wasteful number, since it uses less digits than its factorization.

687059034368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904 (or 23890 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 687059034368 in words is "six hundred eighty-seven billion, fifty-nine million, thirty-four thousand, three hundred sixty-eight".