57097810728 has 192 divisors, whose sum is σ = 179481120000. Its totient is φ = 16061607936.

The previous prime is 57097810723. The next prime is 57097810729. The reversal of 57097810728 is 82701879075.

It is a happy number.

57097810728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57097810723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9725778 + ... + 9731646.

It is an arithmetic number, because the mean of its divisors is an integer number (934797500).

Almost surely, 2^57097810728 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 57097810728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89740560000).

57097810728 is an abundant number, since it is smaller than the sum of its proper divisors (122383309272).

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

57097810728 is a wasteful number, since it uses less digits than its factorization.

57097810728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184 (or 6177 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The spelling of 57097810728 in words is "fifty-seven billion, ninety-seven million, eight hundred ten thousand, seven hundred twenty-eight".