4871722547520 has 672 divisors, whose sum is σ = 18345218580000. Its totient is φ = 1181610934272.

The previous prime is 4871722547513. The next prime is 4871722547567. The reversal of 4871722547520 is 257452271784.

4871722547520 is a `hidden beast` number, since 4 + 8 + 7 + 1 + 72 + 2 + 5 + 47 + 520 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 49411954944 + 4822310592576 = 222288^2 + 2195976^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 269907456 + ... + 269925504.

Almost surely, 2^{4871722547520} is an apocalyptic number.

4871722547520 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 4871722547520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9172609290000).

4871722547520 is an abundant number, since it is smaller than the sum of its proper divisors (13473496032480).

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

4871722547520 is a wasteful number, since it uses less digits than its factorization.

4871722547520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275 (or 18262 counting only the distinct ones).

The product of its (nonzero) digits is 8780800, while the sum is 54.

The spelling of 4871722547520 in words is "four trillion, eight hundred seventy-one billion, seven hundred twenty-two million, five hundred forty-seven thousand, five hundred twenty".