6856940958 has 32 divisors (see below), whose sum is σ = 15675462144. Its totient is φ = 1958819232.

The previous prime is 6856940957. The next prime is 6856940969. The reversal of 6856940958 is 8590496586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856940957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515791 + ... + 528917.

It is an arithmetic number, because the mean of its divisors is an integer number (489858192).

Almost surely, 2^6856940958 is an apocalyptic number.

6856940958 is an abundant number, since it is smaller than the sum of its proper divisors (8818521186).

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

6856940958 is a wasteful number, since it uses less digits than its factorization.

6856940958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25576.

The product of its (nonzero) digits is 18662400, while the sum is 60.

The square root of 6856940958 is about 82806.6480302155. The cubic root of 6856940958 is about 1899.8098570570.

The spelling of 6856940958 in words is "six billion, eight hundred fifty-six million, nine hundred forty thousand, nine hundred fifty-eight".