4644778774 has 8 divisors (see below), whose sum is σ = 6967797840. Its totient is φ = 2322179496.

The previous prime is 4644778771. The next prime is 4644778793. The reversal of 4644778774 is 4778774464.

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 (4644778771) 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, 75649 + ... + 122524.

It is an arithmetic number, because the mean of its divisors is an integer number (870974730).

Almost surely, 2^4644778774 is an apocalyptic number.

4644778774 is a deficient number, since it is larger than the sum of its proper divisors (2323019066).

4644778774 is a wasteful number, since it uses less digits than its factorization.

4644778774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209894.

The product of its digits is 29503488, while the sum is 58.

The square root of 4644778774 is about 68152.6138456919. The cubic root of 4644778774 is about 1668.4825847375.

The spelling of 4644778774 in words is "four billion, six hundred forty-four million, seven hundred seventy-eight thousand, seven hundred seventy-four".