193445430049 has 2 divisors, whose sum is σ = 193445430050. Its totient is φ = 193445430048.

The previous prime is 193445430043. The next prime is 193445430083. The reversal of 193445430049 is 940034544391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188716392225 + 4729037824 = 434415^2 + 68768^2 .

It is an emirp because it is prime and its reverse (940034544391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193445430049 - 2¹³ = 193445421857 is a prime.

It is a super-2 number, since 2×193445430049² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 193445429990 and 193445430008.

It is not a weakly prime, because it can be changed into another prime (193445430043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96722715024 + 96722715025.

It is an arithmetic number, because the mean of its divisors is an integer number (96722715025).

Almost surely, 2^193445430049 is an apocalyptic number.

It is an amenable number.

193445430049 is a deficient number, since it is larger than the sum of its proper divisors (1).

193445430049 is an equidigital number, since it uses as much as digits as its factorization.

193445430049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 193445430049 in words is "one hundred ninety-three billion, four hundred forty-five million, four hundred thirty thousand, forty-nine".