6858427438 has 8 divisors (see below), whose sum is σ = 10538559360. Its totient is φ = 3345574320.

The previous prime is 6858427417. The next prime is 6858427439. The reversal of 6858427438 is 8347248586.

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

It is a super-2 number, since 2×6858427438² = 94076053844622487688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6858427439) 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, 41819598 + ... + 41819761.

It is an arithmetic number, because the mean of its divisors is an integer number (1317319920).

Almost surely, 2^6858427438 is an apocalyptic number.

6858427438 is a deficient number, since it is larger than the sum of its proper divisors (3680131922).

6858427438 is a wasteful number, since it uses less digits than its factorization.

6858427438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83639402.

The product of its digits is 10321920, while the sum is 55.

The square root of 6858427438 is about 82815.6231516735. The cubic root of 6858427438 is about 1899.9471303848.

The spelling of 6858427438 in words is "six billion, eight hundred fifty-eight million, four hundred twenty-seven thousand, four hundred thirty-eight".