6894942020 has 12 divisors (see below), whose sum is σ = 14479378284. Its totient is φ = 2757976800.

The previous prime is 6894942017. The next prime is 6894942037. The reversal of 6894942020 is 202494986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4911486724 + 1983455296 = 70082^2 + 44536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172373531 + ... + 172373570.

It is an arithmetic number, because the mean of its divisors is an integer number (1206614857).

Almost surely, 2^6894942020 is an apocalyptic number.

It is an amenable number.

6894942020 is an abundant number, since it is smaller than the sum of its proper divisors (7584436264).

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

6894942020 is a wasteful number, since it uses less digits than its factorization.

6894942020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344747110 (or 344747108 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 6894942020 is about 83035.7875858355. The cubic root of 6894942020 is about 1903.3129660109.

The spelling of 6894942020 in words is "six billion, eight hundred ninety-four million, nine hundred forty-two thousand, twenty".