6939890989396 has 12 divisors (see below), whose sum is σ = 12144827976820. Its totient is φ = 3469940138880.

The previous prime is 6939890989387. The next prime is 6939890989399.

6939890989396 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 3010433203600 + 3929457785796 = 1735060^2 + 1982286^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939890989399) 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, 3604210 + ... + 5183638.

Almost surely, 2^{6939890989396} is an apocalyptic number.

It is an amenable number.

6939890989396 is a deficient number, since it is larger than the sum of its proper divisors (5204936987424).

6939890989396 is a wasteful number, since it uses less digits than its factorization.

6939890989396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677914 (or 2677912 counting only the distinct ones).

The product of its (nonzero) digits is 11019960576, while the sum is 88.

The spelling of 6939890989396 in words is "six trillion, nine hundred thirty-nine billion, eight hundred ninety million, nine hundred eighty-nine thousand, three hundred ninety-six".