1252288843691 has 2 divisors, whose sum is σ = 1252288843692. Its totient is φ = 1252288843690.

The previous prime is 1252288843661. The next prime is 1252288843789. The reversal of 1252288843691 is 1963488822521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252288843691 - 2³⁰ = 1251215101867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252288843691.

It is not a weakly prime, because it can be changed into another prime (1252288843661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626144421845 + 626144421846.

It is an arithmetic number, because the mean of its divisors is an integer number (626144421846).

Almost surely, 2^{1252288843691} is an apocalyptic number.

1252288843691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252288843691 is an equidigital number, since it uses as much as digits as its factorization.

1252288843691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13271040, while the sum is 59.

The spelling of 1252288843691 in words is "one trillion, two hundred fifty-two billion, two hundred eighty-eight million, eight hundred forty-three thousand, six hundred ninety-one".