193485641077 has 2 divisors, whose sum is σ = 193485641078. Its totient is φ = 193485641076.

The previous prime is 193485641017. The next prime is 193485641093. The reversal of 193485641077 is 770146584391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153922044241 + 39563596836 = 392329^2 + 198906^2 .

It is a cyclic number.

It is not a de Polignac number, because 193485641077 - 2¹¹ = 193485639029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193485641017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96742820538 + 96742820539.

It is an arithmetic number, because the mean of its divisors is an integer number (96742820539).

Almost surely, 2^193485641077 is an apocalyptic number.

It is an amenable number.

193485641077 is a deficient number, since it is larger than the sum of its proper divisors (1).

193485641077 is an equidigital number, since it uses as much as digits as its factorization.

193485641077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 193485641077 in words is "one hundred ninety-three billion, four hundred eighty-five million, six hundred forty-one thousand, seventy-seven".