315794736869 has 2 divisors, whose sum is σ = 315794736870. Its totient is φ = 315794736868.

The previous prime is 315794736767. The next prime is 315794736871. The reversal of 315794736869 is 968637497513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263964750625 + 51829986244 = 513775^2 + 227662^2 .

It is a cyclic number.

It is not a de Polignac number, because 315794736869 - 2²⁰ = 315793688293 is a prime.

It is a super-2 number, since 2×315794736869² (a number of 24 digits) contains 22 as substring.

Together with 315794736871, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 315794736799 and 315794736808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315794736899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157897368434 + 157897368435.

It is an arithmetic number, because the mean of its divisors is an integer number (157897368435).

Almost surely, 2^315794736869 is an apocalyptic number.

It is an amenable number.

315794736869 is a deficient number, since it is larger than the sum of its proper divisors (1).

315794736869 is an equidigital number, since it uses as much as digits as its factorization.

315794736869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205752960, while the sum is 68.

The spelling of 315794736869 in words is "three hundred fifteen billion, seven hundred ninety-four million, seven hundred thirty-six thousand, eight hundred sixty-nine".