57612081871 has 2 divisors, whose sum is σ = 57612081872. Its totient is φ = 57612081870.

The previous prime is 57612081859. The next prime is 57612081893. The reversal of 57612081871 is 17818021675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57612081871 - 2⁷ = 57612081743 is a prime.

It is a super-3 number, since 3×57612081871³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57612081671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28806040935 + 28806040936.

It is an arithmetic number, because the mean of its divisors is an integer number (28806040936).

Almost surely, 2^57612081871 is an apocalyptic number.

57612081871 is a deficient number, since it is larger than the sum of its proper divisors (1).

57612081871 is an equidigital number, since it uses as much as digits as its factorization.

57612081871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 46.

The spelling of 57612081871 in words is "fifty-seven billion, six hundred twelve million, eighty-one thousand, eight hundred seventy-one".