157775311957297 has 2 divisors, whose sum is σ = 157775311957298. Its totient is φ = 157775311957296.

The previous prime is 157775311957247. The next prime is 157775311957309. The reversal of 157775311957297 is 792759113577751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149877239214096 + 7898072743201 = 12242436^2 + 2810351^2 .

It is an emirp because it is prime and its reverse (792759113577751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157775311957297 - 2¹¹ = 157775311955249 is a prime.

It is not a weakly prime, because it can be changed into another prime (157775311957247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78887655978648 + 78887655978649.

It is an arithmetic number, because the mean of its divisors is an integer number (78887655978649).

Almost surely, 2^{157775311957297} is an apocalyptic number.

It is an amenable number.

157775311957297 is a deficient number, since it is larger than the sum of its proper divisors (1).

157775311957297 is an equidigital number, since it uses as much as digits as its factorization.

157775311957297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1021025250, while the sum is 76.

The spelling of 157775311957297 in words is "one hundred fifty-seven trillion, seven hundred seventy-five billion, three hundred eleven million, nine hundred fifty-seven thousand, two hundred ninety-seven".