6937778777396 has 12 divisors (see below), whose sum is σ = 12294797833920. Its totient is φ = 3424979396280.

The previous prime is 6937778777393. The next prime is 6937778777453.

6937778777396 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6937778777393) 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, 10977497750 + ... + 10977498381.

It is an arithmetic number, because the mean of its divisors is an integer number (1024566486160).

Almost surely, 2^{6937778777396} is an apocalyptic number.

It is an amenable number.

6937778777396 is a deficient number, since it is larger than the sum of its proper divisors (5357019056524).

6937778777396 is a wasteful number, since it uses less digits than its factorization.

6937778777396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21954996214 (or 21954996212 counting only the distinct ones).

The product of its digits is 24700642848, while the sum is 86.

The spelling of 6937778777396 in words is "six trillion, nine hundred thirty-seven billion, seven hundred seventy-eight million, seven hundred seventy-seven thousand, three hundred ninety-six".