4791978320 has 80 divisors (see below), whose sum is σ = 11484389952. Its totient is φ = 1858360320.

The previous prime is 4791978293. The next prime is 4791978341. The reversal of 4791978320 is 238791974.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530159 + ... + 539121.

Almost surely, 2^4791978320 is an apocalyptic number.

4791978320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4791978320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5742194976).

4791978320 is an abundant number, since it is smaller than the sum of its proper divisors (6692411632).

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

4791978320 is a wasteful number, since it uses less digits than its factorization.

4791978320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9180 (or 9174 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 4791978320 is about 69224.1166068589. The cubic root of 4791978320 is about 1685.9251195785.

The spelling of 4791978320 in words is "four billion, seven hundred ninety-one million, nine hundred seventy-eight thousand, three hundred twenty".