1257706590211 has 2 divisors, whose sum is σ = 1257706590212. Its totient is φ = 1257706590210.

The previous prime is 1257706590191. The next prime is 1257706590367. The reversal of 1257706590211 is 1120956077521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1257706590211 - 2²³ = 1257698201603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1257706597211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628853295105 + 628853295106.

It is an arithmetic number, because the mean of its divisors is an integer number (628853295106).

Almost surely, 2^{1257706590211} is an apocalyptic number.

1257706590211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257706590211 is an equidigital number, since it uses as much as digits as its factorization.

1257706590211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 46.

The spelling of 1257706590211 in words is "one trillion, two hundred fifty-seven billion, seven hundred six million, five hundred ninety thousand, two hundred eleven".