315642051841 has 2 divisors, whose sum is σ = 315642051842. Its totient is φ = 315642051840.

The previous prime is 315642051757. The next prime is 315642051883. The reversal of 315642051841 is 148150246513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297395715600 + 18246336241 = 545340^2 + 135079^2 .

It is a cyclic number.

It is not a de Polignac number, because 315642051841 - 2⁷ = 315642051713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315642051794 and 315642051803.

It is not a weakly prime, because it can be changed into another prime (315642151841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157821025920 + 157821025921.

It is an arithmetic number, because the mean of its divisors is an integer number (157821025921).

Almost surely, 2^315642051841 is an apocalyptic number.

It is an amenable number.

315642051841 is a deficient number, since it is larger than the sum of its proper divisors (1).

315642051841 is an equidigital number, since it uses as much as digits as its factorization.

315642051841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 315642051841 in words is "three hundred fifteen billion, six hundred forty-two million, fifty-one thousand, eight hundred forty-one".