687025476898 has 16 divisors (see below), whose sum is σ = 1064811280896. Its totient is φ = 332109839520.

The previous prime is 687025476887. The next prime is 687025476941. The reversal of 687025476898 is 898674520786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5299486 + ... + 5427577.

It is an arithmetic number, because the mean of its divisors is an integer number (66550705056).

Almost surely, 2^687025476898 is an apocalyptic number.

687025476898 is a deficient number, since it is larger than the sum of its proper divisors (377785803998).

687025476898 is a wasteful number, since it uses less digits than its factorization.

687025476898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10728129.

The product of its (nonzero) digits is 325140480, while the sum is 70.

The spelling of 687025476898 in words is "six hundred eighty-seven billion, twenty-five million, four hundred seventy-six thousand, eight hundred ninety-eight".