4978771832 has 8 divisors (see below), whose sum is σ = 9335197200. Its totient is φ = 2489385912.

The previous prime is 4978771829. The next prime is 4978771867. The reversal of 4978771832 is 2381778794.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 311173232 + ... + 311173247.

It is an arithmetic number, because the mean of its divisors is an integer number (1166899650).

Almost surely, 2^4978771832 is an apocalyptic number.

It is an amenable number.

4978771832 is a deficient number, since it is larger than the sum of its proper divisors (4356425368).

4978771832 is a wasteful number, since it uses less digits than its factorization.

4978771832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622346485 (or 622346481 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 56.

The square root of 4978771832 is about 70560.4126405168. The cubic root of 4978771832 is about 1707.5525366856.

The spelling of 4978771832 in words is "four billion, nine hundred seventy-eight million, seven hundred seventy-one thousand, eight hundred thirty-two".