57215342590728 has 48 divisors (see below), whose sum is σ = 166391557537680. Its totient is φ = 16347240739872.

The previous prime is 57215342590727. The next prime is 57215342590771. The reversal of 57215342590728 is 82709524351275.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57215342590727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24326249926 + ... + 24326252277.

It is an arithmetic number, because the mean of its divisors is an integer number (3466490782035).

Almost surely, 2^{57215342590728} is an apocalyptic number.

It is an amenable number.

57215342590728 is an abundant number, since it is smaller than the sum of its proper divisors (109176214946952).

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

57215342590728 is a wasteful number, since it uses less digits than its factorization.

57215342590728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48652502226 (or 48652502215 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 60.

The spelling of 57215342590728 in words is "fifty-seven trillion, two hundred fifteen billion, three hundred forty-two million, five hundred ninety thousand, seven hundred twenty-eight".