315642051757 has 2 divisors, whose sum is σ = 315642051758. Its totient is φ = 315642051756.

The previous prime is 315642051713. The next prime is 315642051841. The reversal of 315642051757 is 757150246513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187979476356 + 127662575401 = 433566^2 + 357299^2 .

It is an emirp because it is prime and its reverse (757150246513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315642051757 - 2¹⁹ = 315641527469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315642001757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157821025878 + 157821025879.

It is an arithmetic number, because the mean of its divisors is an integer number (157821025879).

Almost surely, 2^315642051757 is an apocalyptic number.

It is an amenable number.

315642051757 is a deficient number, since it is larger than the sum of its proper divisors (1).

315642051757 is an equidigital number, since it uses as much as digits as its factorization.

315642051757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 315642051757 in words is "three hundred fifteen billion, six hundred forty-two million, fifty-one thousand, seven hundred fifty-seven".