57697411221 has 12 divisors (see below), whose sum is σ = 83576802348. Its totient is φ = 38355972864.

The previous prime is 57697411193. The next prime is 57697411243. The reversal of 57697411221 is 12211479675.

57697411221 is a `hidden beast` number, since 5 + 7 + 6 + 9 + 7 + 411 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25604480196 + 32092931025 = 160014^2 + 179145^2 .

It is not a de Polignac number, because 57697411221 - 2¹⁷ = 57697280149 is a prime.

It is a super-3 number, since 3×57697411221³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57697481221) 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, 9077310 + ... + 9083663.

It is an arithmetic number, because the mean of its divisors is an integer number (6964733529).

Almost surely, 2^57697411221 is an apocalyptic number.

It is an amenable number.

57697411221 is a deficient number, since it is larger than the sum of its proper divisors (25879391127).

57697411221 is a wasteful number, since it uses less digits than its factorization.

57697411221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18161332 (or 18161329 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The spelling of 57697411221 in words is "fifty-seven billion, six hundred ninety-seven million, four hundred eleven thousand, two hundred twenty-one".