57135881639 has 2 divisors, whose sum is σ = 57135881640. Its totient is φ = 57135881638.

The previous prime is 57135881609. The next prime is 57135881683. The reversal of 57135881639 is 93618853175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57135881639 - 2²⁸ = 56867446183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57135881609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28567940819 + 28567940820.

It is an arithmetic number, because the mean of its divisors is an integer number (28567940820).

Almost surely, 2^57135881639 is an apocalyptic number.

57135881639 is a deficient number, since it is larger than the sum of its proper divisors (1).

57135881639 is an equidigital number, since it uses as much as digits as its factorization.

57135881639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 56.

The spelling of 57135881639 in words is "fifty-seven billion, one hundred thirty-five million, eight hundred eighty-one thousand, six hundred thirty-nine".