1535305242641 has 2 divisors, whose sum is σ = 1535305242642. Its totient is φ = 1535305242640.

The previous prime is 1535305242637. The next prime is 1535305242661. The reversal of 1535305242641 is 1462425035351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1148495879041 + 386809363600 = 1071679^2 + 621940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1535305242641 - 2² = 1535305242637 is a prime.

It is not a weakly prime, because it can be changed into another prime (1535305242661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767652621320 + 767652621321.

It is an arithmetic number, because the mean of its divisors is an integer number (767652621321).

Almost surely, 2^{1535305242641} is an apocalyptic number.

It is an amenable number.

1535305242641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1535305242641 is an equidigital number, since it uses as much as digits as its factorization.

1535305242641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 1535305242641 in words is "one trillion, five hundred thirty-five billion, three hundred five million, two hundred forty-two thousand, six hundred forty-one".