1441258168781 has 2 divisors, whose sum is σ = 1441258168782. Its totient is φ = 1441258168780.

The previous prime is 1441258168741. The next prime is 1441258168793. The reversal of 1441258168781 is 1878618521441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1438584348100 + 2673820681 = 1199410^2 + 51709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441258168781 is a prime.

It is a super-2 number, since 2×1441258168781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441258168741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720629084390 + 720629084391.

It is an arithmetic number, because the mean of its divisors is an integer number (720629084391).

Almost surely, 2^{1441258168781} is an apocalyptic number.

It is an amenable number.

1441258168781 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441258168781 is an equidigital number, since it uses as much as digits as its factorization.

1441258168781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3440640, while the sum is 56.

The spelling of 1441258168781 in words is "one trillion, four hundred forty-one billion, two hundred fifty-eight million, one hundred sixty-eight thousand, seven hundred eighty-one".