687011523430 has 8 divisors (see below), whose sum is σ = 1236620742192. Its totient is φ = 274804609368.

The previous prime is 687011523421. The next prime is 687011523437. The reversal of 687011523430 is 34325110786.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687011523437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34350576162 + ... + 34350576181.

It is an arithmetic number, because the mean of its divisors is an integer number (154577592774).

Almost surely, 2^687011523430 is an apocalyptic number.

687011523430 is a deficient number, since it is larger than the sum of its proper divisors (549609218762).

687011523430 is a wasteful number, since it uses less digits than its factorization.

687011523430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68701152350.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 687011523430 in words is "six hundred eighty-seven billion, eleven million, five hundred twenty-three thousand, four hundred thirty".