57521678296896 has 336 divisors, whose sum is σ = 184622933304576. Its totient is φ = 16975296000000.

The previous prime is 57521678296861. The next prime is 57521678296897. The reversal of 57521678296896 is 69869287612575.

57521678296896 is a `hidden beast` number, since 5 + 7 + 521 + 6 + 7 + 8 + 2 + 9 + 6 + 89 + 6 = 666.

It is a super-2 number, since 2×57521678296896² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57521678296897) 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, 38299321 + ... + 39772871.

Almost surely, 2^{57521678296896} 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 57521678296896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92311466652288).

57521678296896 is an abundant number, since it is smaller than the sum of its proper divisors (127101255007680).

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

57521678296896 is a wasteful number, since it uses less digits than its factorization.

57521678296896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473742 (or 1473729 counting only the distinct ones).

The product of its digits is 5486745600, while the sum is 81.

The spelling of 57521678296896 in words is "fifty-seven trillion, five hundred twenty-one billion, six hundred seventy-eight million, two hundred ninety-six thousand, eight hundred ninety-six".