6778345673436 has 96 divisors (see below), whose sum is σ = 17208302764800. Its totient is φ = 2069753886720.

The previous prime is 6778345673423. The next prime is 6778345673443. The reversal of 6778345673436 is 6343765438776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3309685 + ... + 4950828.

It is an arithmetic number, because the mean of its divisors is an integer number (179253153800).

Almost surely, 2^{6778345673436} is an apocalyptic number.

It is an amenable number.

6778345673436 is an abundant number, since it is smaller than the sum of its proper divisors (10429957091364).

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

6778345673436 is a wasteful number, since it uses less digits than its factorization.

6778345673436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8260659 (or 8260657 counting only the distinct ones).

The product of its digits is 1280240640, while the sum is 69.

The spelling of 6778345673436 in words is "six trillion, seven hundred seventy-eight billion, three hundred forty-five million, six hundred seventy-three thousand, four hundred thirty-six".