6938541994 has 16 divisors (see below), whose sum is σ = 10809217800. Its totient is φ = 3337576704.

The previous prime is 6938541983. The next prime is 6938542021. The reversal of 6938541994 is 4991458396.

It can be written as a sum of positive squares in 4 ways, for example, as 6700241025 + 238300969 = 81855^2 + 15437^2 .

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, 520179 + ... + 533350.

Almost surely, 2^6938541994 is an apocalyptic number.

6938541994 is a deficient number, since it is larger than the sum of its proper divisors (3870675806).

6938541994 is a wasteful number, since it uses less digits than its factorization.

6938541994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053657.

The product of its digits is 8398080, while the sum is 58.

The square root of 6938541994 is about 83297.9111022599. The cubic root of 6938541994 is about 1907.3163881811.

The spelling of 6938541994 in words is "six billion, nine hundred thirty-eight million, five hundred forty-one thousand, nine hundred ninety-four".