57139893149 has 2 divisors, whose sum is σ = 57139893150. Its totient is φ = 57139893148.

The previous prime is 57139893121. The next prime is 57139893211. The reversal of 57139893149 is 94139893175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40020002500 + 17119890649 = 200050^2 + 130843^2 .

It is a cyclic number.

It is not a de Polignac number, because 57139893149 - 2⁸ = 57139892893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57139893049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28569946574 + 28569946575.

It is an arithmetic number, because the mean of its divisors is an integer number (28569946575).

Almost surely, 2^57139893149 is an apocalyptic number.

It is an amenable number.

57139893149 is a deficient number, since it is larger than the sum of its proper divisors (1).

57139893149 is an equidigital number, since it uses as much as digits as its factorization.

57139893149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 59.

The spelling of 57139893149 in words is "fifty-seven billion, one hundred thirty-nine million, eight hundred ninety-three thousand, one hundred forty-nine".