4378166819 has 8 divisors (see below), whose sum is σ = 4824599472. Its totient is φ = 3947398560.

The previous prime is 4378166773. The next prime is 4378166839. The reversal of 4378166819 is 9186618734.

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

It is a cyclic number.

It is not a de Polignac number, because 4378166819 - 2¹⁶ = 4378101283 is a prime.

It is a super-2 number, since 2×4378166819² = 38336689389985157522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4378166839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3915512 + ... + 3916629.

It is an arithmetic number, because the mean of its divisors is an integer number (603074934).

Almost surely, 2^4378166819 is an apocalyptic number.

4378166819 is a deficient number, since it is larger than the sum of its proper divisors (446432653).

4378166819 is a wasteful number, since it uses less digits than its factorization.

4378166819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832197.

The product of its digits is 1741824, while the sum is 53.

The square root of 4378166819 is about 66167.7173476613. The cubic root of 4378166819 is about 1635.9276837245.

The spelling of 4378166819 in words is "four billion, three hundred seventy-eight million, one hundred sixty-six thousand, eight hundred nineteen".