4721857508 has 12 divisors (see below), whose sum is σ = 8749324332. Its totient is φ = 2222050560.

The previous prime is 4721857507. The next prime is 4721857549. The reversal of 4721857508 is 8057581274.

It can be written as a sum of positive squares in 2 ways, for example, as 4214346724 + 507510784 = 64918^2 + 22528^2 .

It is not an unprimeable number, because it can be changed into a prime (4721857507) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34719473 + ... + 34719608.

It is an arithmetic number, because the mean of its divisors is an integer number (729110361).

Almost surely, 2^4721857508 is an apocalyptic number.

It is an amenable number.

4721857508 is a deficient number, since it is larger than the sum of its proper divisors (4027466824).

4721857508 is a wasteful number, since it uses less digits than its factorization.

4721857508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69439102 (or 69439100 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 47.

The square root of 4721857508 is about 68715.7733566319. The cubic root of 4721857508 is about 1677.6613231017.

The spelling of 4721857508 in words is "four billion, seven hundred twenty-one million, eight hundred fifty-seven thousand, five hundred eight".