57881949120 has 672 divisors, whose sum is σ = 214654302720. Its totient is φ = 14288117760.

The previous prime is 57881949079. The next prime is 57881949121. The reversal of 57881949120 is 2194918875.

It is a happy number.

57881949120 is a `hidden beast` number, since 5 + 78 + 81 + 9 + 491 + 2 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57881949121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 254986447 + ... + 254986673.

Almost surely, 2^57881949120 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 57881949120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107327151360).

57881949120 is an abundant number, since it is smaller than the sum of its proper divisors (156772353600).

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

57881949120 is a wasteful number, since it uses less digits than its factorization.

57881949120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

It can be divided in two parts, 57881 and 949120, that added together give a palindrome (1007001).

The spelling of 57881949120 in words is "fifty-seven billion, eight hundred eighty-one million, nine hundred forty-nine thousand, one hundred twenty".