6855918740 has 24 divisors (see below), whose sum is σ = 15706287072. Its totient is φ = 2493061280.

The previous prime is 6855918697. The next prime is 6855918757. The reversal of 6855918740 is 478195586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15581414 + ... + 15581853.

It is an arithmetic number, because the mean of its divisors is an integer number (654428628).

Almost surely, 2^6855918740 is an apocalyptic number.

It is an amenable number.

6855918740 is an abundant number, since it is smaller than the sum of its proper divisors (8850368332).

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

6855918740 is a wasteful number, since it uses less digits than its factorization.

6855918740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31163287 (or 31163285 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The square root of 6855918740 is about 82800.4754817266. The cubic root of 6855918740 is about 1899.7154458438.

The spelling of 6855918740 in words is "six billion, eight hundred fifty-five million, nine hundred eighteen thousand, seven hundred forty".