1252948511839 has 2 divisors, whose sum is σ = 1252948511840. Its totient is φ = 1252948511838.

The previous prime is 1252948511803. The next prime is 1252948511891. The reversal of 1252948511839 is 9381158492521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9381158492521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252948511839 - 2⁹ = 1252948511327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252948511039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626474255919 + 626474255920.

It is an arithmetic number, because the mean of its divisors is an integer number (626474255920).

Almost surely, 2^{1252948511839} is an apocalyptic number.

1252948511839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252948511839 is an equidigital number, since it uses as much as digits as its factorization.

1252948511839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 58.

The spelling of 1252948511839 in words is "one trillion, two hundred fifty-two billion, nine hundred forty-eight million, five hundred eleven thousand, eight hundred thirty-nine".