4771631928 has 128 divisors (see below), whose sum is σ = 14144601600. Its totient is φ = 1312464384.

The previous prime is 4771631873. The next prime is 4771631951. The reversal of 4771631928 is 8291361774.

It is a happy number.

It is a Cunningham number, because it is equal to 69077²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1932951 + ... + 1935417.

It is an arithmetic number, because the mean of its divisors is an integer number (110504700).

Almost surely, 2^4771631928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4771631928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7072300800).

4771631928 is an abundant number, since it is smaller than the sum of its proper divisors (9372969672).

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

4771631928 is a wasteful number, since it uses less digits than its factorization.

4771631928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909 (or 2905 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 4771631928 is about 69076.9999927617. Note that the first 5 decimals coincide. The cubic root of 4771631928 is about 1683.5356292992.

The spelling of 4771631928 in words is "four billion, seven hundred seventy-one million, six hundred thirty-one thousand, nine hundred twenty-eight".