199353763057 has 2 divisors, whose sum is σ = 199353763058. Its totient is φ = 199353763056.

The previous prime is 199353763003. The next prime is 199353763079. The reversal of 199353763057 is 750367353991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199343497441 + 10265616 = 446479^2 + 3204^2 .

It is an emirp because it is prime and its reverse (750367353991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199353763057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199353762992 and 199353763010.

It is not a weakly prime, because it can be changed into another prime (199353763457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99676881528 + 99676881529.

It is an arithmetic number, because the mean of its divisors is an integer number (99676881529).

Almost surely, 2^199353763057 is an apocalyptic number.

It is an amenable number.

199353763057 is a deficient number, since it is larger than the sum of its proper divisors (1).

199353763057 is an equidigital number, since it uses as much as digits as its factorization.

199353763057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16074450, while the sum is 58.

The spelling of 199353763057 in words is "one hundred ninety-nine billion, three hundred fifty-three million, seven hundred sixty-three thousand, fifty-seven".