57206971197 has 32 divisors (see below), whose sum is σ = 88016501760. Its totient is φ = 36695015280.

The previous prime is 57206971189. The next prime is 57206971207. The reversal of 57206971197 is 79117960275.

It is a happy number.

57206971197 is a `hidden beast` number, since 572 + 0 + 69 + 7 + 1 + 1 + 9 + 7 = 666.

It is not a de Polignac number, because 57206971197 - 2³ = 57206971189 is a prime.

It is a super-2 number, since 2×57206971197² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57206971187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289929 + ... + 445502.

It is an arithmetic number, because the mean of its divisors is an integer number (2750515680).

Almost surely, 2^57206971197 is an apocalyptic number.

It is an amenable number.

57206971197 is a deficient number, since it is larger than the sum of its proper divisors (30809530563).

57206971197 is a wasteful number, since it uses less digits than its factorization.

57206971197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735550 (or 735544 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 54.

The spelling of 57206971197 in words is "fifty-seven billion, two hundred six million, nine hundred seventy-one thousand, one hundred ninety-seven".