4778669198 has 8 divisors (see below), whose sum is σ = 7479656208. Its totient is φ = 2285450464.

The previous prime is 4778669197. The next prime is 4778669201. The reversal of 4778669198 is 8919668774.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778669197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51942011 + ... + 51942102.

It is an arithmetic number, because the mean of its divisors is an integer number (934957026).

Almost surely, 2^4778669198 is an apocalyptic number.

4778669198 is a deficient number, since it is larger than the sum of its proper divisors (2700987010).

4778669198 is a wasteful number, since it uses less digits than its factorization.

4778669198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103884138.

The product of its digits is 36578304, while the sum is 65.

The square root of 4778669198 is about 69127.9190920716. The cubic root of 4778669198 is about 1684.3628567859.

The spelling of 4778669198 in words is "four billion, seven hundred seventy-eight million, six hundred sixty-nine thousand, one hundred ninety-eight".