193646412913 has 2 divisors, whose sum is σ = 193646412914. Its totient is φ = 193646412912.

The previous prime is 193646412907. The next prime is 193646412919. The reversal of 193646412913 is 319214646391.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (193646412907) and next prime (193646412919).

It can be written as a sum of positive squares in only one way, i.e., 193325537344 + 320875569 = 439688^2 + 17913^2 .

It is a cyclic number.

It is not a de Polignac number, because 193646412913 - 2²⁹ = 193109542001 is a prime.

It is not a weakly prime, because it can be changed into another prime (193646412919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96823206456 + 96823206457.

It is an arithmetic number, because the mean of its divisors is an integer number (96823206457).

Almost surely, 2^193646412913 is an apocalyptic number.

It is an amenable number.

193646412913 is a deficient number, since it is larger than the sum of its proper divisors (1).

193646412913 is an equidigital number, since it uses as much as digits as its factorization.

193646412913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The spelling of 193646412913 in words is "one hundred ninety-three billion, six hundred forty-six million, four hundred twelve thousand, nine hundred thirteen".