57280958208 has 216 divisors, whose sum is σ = 168312362400. Its totient is φ = 18732122112.

The previous prime is 57280958197. The next prime is 57280958233. The reversal of 57280958208 is 80285908275.

57280958208 is a `hidden beast` number, since 57 + 2 + 8 + 0 + 9 + 582 + 0 + 8 = 666.

It is a super-2 number, since 2×57280958208² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28091653 + ... + 28093691.

It is an arithmetic number, because the mean of its divisors is an integer number (779223900).

Almost surely, 2^57280958208 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 57280958208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84156181200).

57280958208 is an abundant number, since it is smaller than the sum of its proper divisors (111031404192).

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

57280958208 is a wasteful number, since it uses less digits than its factorization.

57280958208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2270 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 57280958208 in words is "fifty-seven billion, two hundred eighty million, nine hundred fifty-eight thousand, two hundred eight".