3816851878 has 16 divisors (see below), whose sum is σ = 6768802080. Its totient is φ = 1579386816.

The previous prime is 3816851851. The next prime is 3816851881. The reversal of 3816851878 is 8781586183.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4700151 + ... + 4700962.

It is an arithmetic number, because the mean of its divisors is an integer number (423050130).

Almost surely, 2^3816851878 is an apocalyptic number.

3816851878 is a deficient number, since it is larger than the sum of its proper divisors (2951950202).

3816851878 is a wasteful number, since it uses less digits than its factorization.

3816851878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401151.

The product of its digits is 2580480, while the sum is 55.

The square root of 3816851878 is about 61780.6756032985. The cubic root of 3816851878 is about 1562.7941210415.

The spelling of 3816851878 in words is "three billion, eight hundred sixteen million, eight hundred fifty-one thousand, eight hundred seventy-eight".