687072664229 has 8 divisors (see below), whose sum is σ = 787734613440. Its totient is φ = 587037892896.

The previous prime is 687072664183. The next prime is 687072664297. The reversal of 687072664229 is 922466270786.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 687072664229 - 2¹² = 687072660133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687072664129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156792119 + ... + 156796500.

It is an arithmetic number, because the mean of its divisors is an integer number (98466826680).

Almost surely, 2^687072664229 is an apocalyptic number.

It is an amenable number.

687072664229 is a deficient number, since it is larger than the sum of its proper divisors (100661949211).

687072664229 is a wasteful number, since it uses less digits than its factorization.

687072664229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313588939.

The product of its (nonzero) digits is 24385536, while the sum is 59.

The spelling of 687072664229 in words is "six hundred eighty-seven billion, seventy-two million, six hundred sixty-four thousand, two hundred twenty-nine".