1355997984041 has 2 divisors, whose sum is σ = 1355997984042. Its totient is φ = 1355997984040.

The previous prime is 1355997984037. The next prime is 1355997984067. The reversal of 1355997984041 is 1404897995531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000758143641 + 355239840400 = 1000379^2 + 596020^2 .

It is an emirp because it is prime and its reverse (1404897995531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1355997984041 - 2² = 1355997984037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1355997984541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677998992020 + 677998992021.

It is an arithmetic number, because the mean of its divisors is an integer number (677998992021).

Almost surely, 2^{1355997984041} is an apocalyptic number.

It is an amenable number.

1355997984041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355997984041 is an equidigital number, since it uses as much as digits as its factorization.

1355997984041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 1355997984041 in words is "one trillion, three hundred fifty-five billion, nine hundred ninety-seven million, nine hundred eighty-four thousand, forty-one".