1253863262609 has 2 divisors, whose sum is σ = 1253863262610. Its totient is φ = 1253863262608.

The previous prime is 1253863262599. The next prime is 1253863262627. The reversal of 1253863262609 is 9062623683521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 655568747584 + 598294515025 = 809672^2 + 773495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253863262609 - 2⁴ = 1253863262593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253863262629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626931631304 + 626931631305.

It is an arithmetic number, because the mean of its divisors is an integer number (626931631305).

Almost surely, 2^{1253863262609} is an apocalyptic number.

It is an amenable number.

1253863262609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253863262609 is an equidigital number, since it uses as much as digits as its factorization.

1253863262609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 1253863262609 in words is "one trillion, two hundred fifty-three billion, eight hundred sixty-three million, two hundred sixty-two thousand, six hundred nine".