687225599999 has 8 divisors (see below), whose sum is σ = 754847341440. Its totient is φ = 622749055896.

The previous prime is 687225599989. The next prime is 687225600167. The reversal of 687225599999 is 999995522786.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-687225599999 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 (687225599989) 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, 786298877 + ... + 786299750.

It is an arithmetic number, because the mean of its divisors is an integer number (94355917680).

Almost surely, 2^687225599999 is an apocalyptic number.

687225599999 is a deficient number, since it is larger than the sum of its proper divisors (67621741441).

687225599999 is a wasteful number, since it uses less digits than its factorization.

687225599999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572598669.

The product of its digits is 1984046400, while the sum is 80.

The spelling of 687225599999 in words is "six hundred eighty-seven billion, two hundred twenty-five million, five hundred ninety-nine thousand, nine hundred ninety-nine".