4778334432 has 72 divisors (see below), whose sum is σ = 14387720256. Its totient is φ = 1499083776.

The previous prime is 4778334397. The next prime is 4778334443. The reversal of 4778334432 is 2344338774.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483088 + ... + 492879.

It is an arithmetic number, because the mean of its divisors is an integer number (199829448).

Almost surely, 2^4778334432 is an apocalyptic number.

It is an amenable number.

4778334432 is an abundant number, since it is smaller than the sum of its proper divisors (9609385824).

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

4778334432 is a wasteful number, since it uses less digits than its factorization.

4778334432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976000 (or 975989 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 45.

The square root of 4778334432 is about 69125.4976980275. The cubic root of 4778334432 is about 1684.3235236187.

It can be divided in two parts, 47783 and 34432, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 4778334432 in words is "four billion, seven hundred seventy-eight million, three hundred thirty-four thousand, four hundred thirty-two".