57244916840 has 64 divisors (see below), whose sum is σ = 135664588800. Its totient is φ = 21679287552.

The previous prime is 57244916837. The next prime is 57244916843. The reversal of 57244916840 is 4861944275.

It is an interprime number because it is at equal distance from previous prime (57244916837) and next prime (57244916843).

It is not an unprimeable number, because it can be changed into a prime (57244916843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241234 + ... + 1286526.

It is an arithmetic number, because the mean of its divisors is an integer number (2119759200).

Almost surely, 2^57244916840 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 57244916840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67832294400).

57244916840 is an abundant number, since it is smaller than the sum of its proper divisors (78419671960).

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

57244916840 is a wasteful number, since it uses less digits than its factorization.

57244916840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46986 (or 46982 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 57244916840 in words is "fifty-seven billion, two hundred forty-four million, nine hundred sixteen thousand, eight hundred forty".