57381356629 has 2 divisors, whose sum is σ = 57381356630. Its totient is φ = 57381356628.

The previous prime is 57381356587. The next prime is 57381356693. The reversal of 57381356629 is 92665318375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44405868529 + 12975488100 = 210727^2 + 113910^2 .

It is a cyclic number.

It is not a de Polignac number, because 57381356629 - 2¹¹ = 57381354581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57381356629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57381356699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28690678314 + 28690678315.

It is an arithmetic number, because the mean of its divisors is an integer number (28690678315).

Almost surely, 2^57381356629 is an apocalyptic number.

It is an amenable number.

57381356629 is a deficient number, since it is larger than the sum of its proper divisors (1).

57381356629 is an equidigital number, since it uses as much as digits as its factorization.

57381356629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 55.

The spelling of 57381356629 in words is "fifty-seven billion, three hundred eighty-one million, three hundred fifty-six thousand, six hundred twenty-nine".