57243179520 has 560 divisors, whose sum is σ = 211596624360. Its totient is φ = 14834368512.

The previous prime is 57243179509. The next prime is 57243179593. The reversal of 57243179520 is 2597134275.

It is a happy number.

57243179520 is a `hidden beast` number, since 5 + 7 + 24 + 31 + 79 + 520 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 55025899776 + 2217279744 = 234576^2 + 47088^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 69050466 + ... + 69051294.

Almost surely, 2^57243179520 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 57243179520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105798312180).

57243179520 is an abundant number, since it is smaller than the sum of its proper divisors (154353444840).

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

57243179520 is an frugal number, since it uses more digits than its factorization.

57243179520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 57243179520 in words is "fifty-seven billion, two hundred forty-three million, one hundred seventy-nine thousand, five hundred twenty".