687343500201 has 32 divisors (see below), whose sum is σ = 921957120000. Its totient is φ = 455491427328.

The previous prime is 687343500197. The next prime is 687343500223. The reversal of 687343500201 is 102005343786.

It is not a de Polignac number, because 687343500201 - 2² = 687343500197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 687343500201.

It is not an unprimeable number, because it can be changed into a prime (687343500601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819240940 + ... + 819241778.

It is an arithmetic number, because the mean of its divisors is an integer number (28811160000).

Almost surely, 2^687343500201 is an apocalyptic number.

It is an amenable number.

687343500201 is a deficient number, since it is larger than the sum of its proper divisors (234613619799).

687343500201 is a wasteful number, since it uses less digits than its factorization.

687343500201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853.

The product of its (nonzero) digits is 120960, while the sum is 39.

Adding to 687343500201 its reverse (102005343786), we get a palindrome (789348843987).

The spelling of 687343500201 in words is "six hundred eighty-seven billion, three hundred forty-three million, five hundred thousand, two hundred one".