57194521438909 has 2 divisors, whose sum is σ = 57194521438910. Its totient is φ = 57194521438908.

The previous prime is 57194521438903. The next prime is 57194521438961. The reversal of 57194521438909 is 90983412549175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48186851805625 + 9007669633284 = 6941675^2 + 3001278^2 .

It is a cyclic number.

It is not a de Polignac number, because 57194521438909 - 2¹⁷ = 57194521307837 is a prime.

It is a super-2 number, since 2×57194521438909² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57194521438903) 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, 28597260719454 + 28597260719455.

It is an arithmetic number, because the mean of its divisors is an integer number (28597260719455).

Almost surely, 2^{57194521438909} is an apocalyptic number.

It is an amenable number.

57194521438909 is a deficient number, since it is larger than the sum of its proper divisors (1).

57194521438909 is an equidigital number, since it uses as much as digits as its factorization.

57194521438909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 57194521438909 in words is "fifty-seven trillion, one hundred ninety-four billion, five hundred twenty-one million, four hundred thirty-eight thousand, nine hundred nine".