1257884893141 has 2 divisors, whose sum is σ = 1257884893142. Its totient is φ = 1257884893140.

The previous prime is 1257884893129. The next prime is 1257884893157. The reversal of 1257884893141 is 1413984887521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1229637032100 + 28247861041 = 1108890^2 + 168071^2 .

It is a cyclic number.

It is not a de Polignac number, because 1257884893141 - 2²¹ = 1257882795989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1257884893141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257884893241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628942446570 + 628942446571.

It is an arithmetic number, because the mean of its divisors is an integer number (628942446571).

Almost surely, 2^{1257884893141} is an apocalyptic number.

It is an amenable number.

1257884893141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257884893141 is an equidigital number, since it uses as much as digits as its factorization.

1257884893141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 61.

The spelling of 1257884893141 in words is "one trillion, two hundred fifty-seven billion, eight hundred eighty-four million, eight hundred ninety-three thousand, one hundred forty-one".