685222858038 has 8 divisors (see below), whose sum is σ = 1370445716088. Its totient is φ = 228407619344.

The previous prime is 685222858013. The next prime is 685222858039. The reversal of 685222858038 is 830858222586.

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

685222858038 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685222858039) 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, 57101904831 + ... + 57101904842.

It is an arithmetic number, because the mean of its divisors is an integer number (171305714511).

Almost surely, 2^685222858038 is an apocalyptic number.

685222858038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685222858038 is a wasteful number, since it uses less digits than its factorization.

685222858038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114203809678.

The product of its (nonzero) digits is 14745600, while the sum is 57.

The spelling of 685222858038 in words is "six hundred eighty-five billion, two hundred twenty-two million, eight hundred fifty-eight thousand, thirty-eight".