193567842641 has 2 divisors, whose sum is σ = 193567842642. Its totient is φ = 193567842640.

The previous prime is 193567842493. The next prime is 193567842697. The reversal of 193567842641 is 146248765391.

It is a happy number.

It is an a-pointer prime, because the next prime (193567842697) can be obtained adding 193567842641 to its sum of digits (56).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160797792016 + 32770050625 = 400996^2 + 181025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193567842641 is a prime.

It is not a weakly prime, because it can be changed into another prime (193567842241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96783921320 + 96783921321.

It is an arithmetic number, because the mean of its divisors is an integer number (96783921321).

Almost surely, 2^193567842641 is an apocalyptic number.

It is an amenable number.

193567842641 is a deficient number, since it is larger than the sum of its proper divisors (1).

193567842641 is an equidigital number, since it uses as much as digits as its factorization.

193567842641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 56.

The spelling of 193567842641 in words is "one hundred ninety-three billion, five hundred sixty-seven million, eight hundred forty-two thousand, six hundred forty-one".