3806778555375 has 16 divisors (see below), whose sum is σ = 6334479516768. Its totient is φ = 2030281896000.

The previous prime is 3806778555353. The next prime is 3806778555379. The reversal of 3806778555375 is 5735558776083.

It is not a de Polignac number, because 3806778555375 - 2¹⁷ = 3806778424303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806778555379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5075704366 + ... + 5075705115.

It is an arithmetic number, because the mean of its divisors is an integer number (395904969798).

Almost surely, 2^{3806778555375} is an apocalyptic number.

3806778555375 is a deficient number, since it is larger than the sum of its proper divisors (2527700961393).

3806778555375 is a wasteful number, since it uses less digits than its factorization.

3806778555375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151409499 (or 10151409489 counting only the distinct ones).

The product of its (nonzero) digits is 740880000, while the sum is 69.

The spelling of 3806778555375 in words is "three trillion, eight hundred six billion, seven hundred seventy-eight million, five hundred fifty-five thousand, three hundred seventy-five".