4478046778 has 8 divisors (see below), whose sum is σ = 7009116768. Its totient is φ = 2141674524.

The previous prime is 4478046763. The next prime is 4478046791. The reversal of 4478046778 is 8776408744.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48674376 + ... + 48674467.

It is an arithmetic number, because the mean of its divisors is an integer number (876139596).

Almost surely, 2^4478046778 is an apocalyptic number.

4478046778 is a deficient number, since it is larger than the sum of its proper divisors (2531069990).

4478046778 is a wasteful number, since it uses less digits than its factorization.

4478046778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97348868.

The product of its (nonzero) digits is 8429568, while the sum is 55.

The square root of 4478046778 is about 66918.2096144241. The cubic root of 4478046778 is about 1648.2745081595.

The spelling of 4478046778 in words is "four billion, four hundred seventy-eight million, forty-six thousand, seven hundred seventy-eight".