1478253887441 has 2 divisors, whose sum is σ = 1478253887442. Its totient is φ = 1478253887440.

The previous prime is 1478253887423. The next prime is 1478253887447. The reversal of 1478253887441 is 1447883528741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1367311601041 + 110942286400 = 1169321^2 + 333080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1478253887441 - 2¹⁴ = 1478253871057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1478253887447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739126943720 + 739126943721.

It is an arithmetic number, because the mean of its divisors is an integer number (739126943721).

Almost surely, 2^{1478253887441} is an apocalyptic number.

It is an amenable number.

1478253887441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478253887441 is an equidigital number, since it uses as much as digits as its factorization.

1478253887441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48168960, while the sum is 62.

The spelling of 1478253887441 in words is "one trillion, four hundred seventy-eight billion, two hundred fifty-three million, eight hundred eighty-seven thousand, four hundred forty-one".