3806778556016 has 20 divisors (see below), whose sum is σ = 7376900706024. Its totient is φ = 1903062244800.

The previous prime is 3806778555893. The next prime is 3806778556027. The reversal of 3806778556016 is 6106558776083.

It is a self number, because there is not a number n which added to its sum of digits gives 3806778556016.

It is a congruent number.

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, 20343530 + ... + 20529801.

Almost surely, 2^{3806778556016} is an apocalyptic number.

It is an amenable number.

3806778556016 is a deficient number, since it is larger than the sum of its proper divisors (3570122150008).

3806778556016 is a wasteful number, since it uses less digits than its factorization.

3806778556016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40879160 (or 40879154 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 3806778556016 in words is "three trillion, eight hundred six billion, seven hundred seventy-eight million, five hundred fifty-six thousand, sixteen".