685413415438 has 8 divisors (see below), whose sum is σ = 1028135478888. Its totient is φ = 342701589144.

The previous prime is 685413415399. The next prime is 685413415481. The reversal of 685413415438 is 834514314586.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389656 + ... + 2661067.

It is an arithmetic number, because the mean of its divisors is an integer number (128516934861).

Almost surely, 2^685413415438 is an apocalyptic number.

685413415438 is a deficient number, since it is larger than the sum of its proper divisors (342722063450).

685413415438 is a wasteful number, since it uses less digits than its factorization.

685413415438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5118578.

The product of its digits is 5529600, while the sum is 52.

The spelling of 685413415438 in words is "six hundred eighty-five billion, four hundred thirteen million, four hundred fifteen thousand, four hundred thirty-eight".