4446677778 has 8 divisors (see below), whose sum is σ = 8893355568. Its totient is φ = 1482225924.

The previous prime is 4446677701. The next prime is 4446677801. The reversal of 4446677778 is 8777766444.

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

4446677778 is an admirable number.

It is a super-2 number, since 2×4446677778² = 39545886522718034568, which contains 22 as substring.

It is a plaindrome in base 10.

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 3 ways as a sum of consecutive naturals, for example, 370556476 + ... + 370556487.

It is an arithmetic number, because the mean of its divisors is an integer number (1111669446).

Almost surely, 2^4446677778 is an apocalyptic number.

4446677778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4446677778 is a wasteful number, since it uses less digits than its factorization.

4446677778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741112968.

The product of its digits is 44255232, while the sum is 60.

The square root of 4446677778 is about 66683.4145646427. The cubic root of 4446677778 is about 1644.4167304804.

The spelling of 4446677778 in words is "four billion, four hundred forty-six million, six hundred seventy-seven thousand, seven hundred seventy-eight".