3878798194 has 8 divisors (see below), whose sum is σ = 5960104668. Its totient is φ = 1892096640.

The previous prime is 3878798191. The next prime is 3878798221. The reversal of 3878798194 is 4918978783.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3876681169 + 2117025 = 62263^2 + 1455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3878798191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23651127 + ... + 23651290.

Almost surely, 2^3878798194 is an apocalyptic number.

3878798194 is a deficient number, since it is larger than the sum of its proper divisors (2081306474).

3878798194 is a wasteful number, since it uses less digits than its factorization.

3878798194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47302460.

The product of its digits is 24385536, while the sum is 64.

The square root of 3878798194 is about 62279.9983461785. The cubic root of 3878798194 is about 1571.2033445573.

The spelling of 3878798194 in words is "three billion, eight hundred seventy-eight million, seven hundred ninety-eight thousand, one hundred ninety-four".