6856419558 has 32 divisors (see below), whose sum is σ = 13901263200. Its totient is φ = 2254196736.

The previous prime is 6856419541. The next prime is 6856419593. The reversal of 6856419558 is 8559146586.

It is a junction number, because it is equal to n+sod(n) for n = 6856419498 and 6856419507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202710 + ... + 234102.

It is an arithmetic number, because the mean of its divisors is an integer number (434414475).

Almost surely, 2^6856419558 is an apocalyptic number.

6856419558 is an abundant number, since it is smaller than the sum of its proper divisors (7044843642).

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

6856419558 is a wasteful number, since it uses less digits than its factorization.

6856419558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31896.

The product of its digits is 10368000, while the sum is 57.

The square root of 6856419558 is about 82803.4996724172. The cubic root of 6856419558 is about 1899.7617021546.

The spelling of 6856419558 in words is "six billion, eight hundred fifty-six million, four hundred nineteen thousand, five hundred fifty-eight".