4948831521 has 12 divisors (see below), whose sum is σ = 7163959972. Its totient is φ = 3291998976.

The previous prime is 4948831507. The next prime is 4948831553. The reversal of 4948831521 is 1251388494.

4948831521 is a `hidden beast` number, since 4 + 9 + 48 + 83 + 1 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1915025121 + 3033806400 = 43761^2 + 55080^2 .

It is not a de Polignac number, because 4948831521 - 2¹⁹ = 4948307233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4948831721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597496 + ... + 605721.

Almost surely, 2^4948831521 is an apocalyptic number.

It is an amenable number.

4948831521 is a deficient number, since it is larger than the sum of its proper divisors (2215128451).

4948831521 is a wasteful number, since it uses less digits than its factorization.

4948831521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203680 (or 1203677 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 4948831521 is about 70347.9318885779. The cubic root of 4948831521 is about 1704.1228100751.

The spelling of 4948831521 in words is "four billion, nine hundred forty-eight million, eight hundred thirty-one thousand, five hundred twenty-one".