193770857057 has 2 divisors, whose sum is σ = 193770857058. Its totient is φ = 193770857056.

The previous prime is 193770857051. The next prime is 193770857083. The reversal of 193770857057 is 750758077391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119003610961 + 74767246096 = 344969^2 + 273436^2 .

It is a cyclic number.

It is not a de Polignac number, because 193770857057 - 2⁴ = 193770857041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 193770856987 and 193770857005.

It is not a weakly prime, because it can be changed into another prime (193770857051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96885428528 + 96885428529.

It is an arithmetic number, because the mean of its divisors is an integer number (96885428529).

Almost surely, 2^193770857057 is an apocalyptic number.

It is an amenable number.

193770857057 is a deficient number, since it is larger than the sum of its proper divisors (1).

193770857057 is an equidigital number, since it uses as much as digits as its factorization.

193770857057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12965400, while the sum is 59.

The spelling of 193770857057 in words is "one hundred ninety-three billion, seven hundred seventy million, eight hundred fifty-seven thousand, fifty-seven".