687515004146 has 8 divisors (see below), whose sum is σ = 1076110441344. Its totient is φ = 328811523700.

The previous prime is 687515004131. The next prime is 687515004181. The reversal of 687515004146 is 641400515786.

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

It is a self number, because there is not a number n which added to its sum of digits gives 687515004146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7472989130 + ... + 7472989221.

It is an arithmetic number, because the mean of its divisors is an integer number (134513805168).

Almost surely, 2^687515004146 is an apocalyptic number.

687515004146 is a deficient number, since it is larger than the sum of its proper divisors (388595437198).

687515004146 is a wasteful number, since it uses less digits than its factorization.

687515004146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14945978376.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 687515004146 in words is "six hundred eighty-seven billion, five hundred fifteen million, four thousand, one hundred forty-six".