1252432450987 has 2 divisors, whose sum is σ = 1252432450988. Its totient is φ = 1252432450986.

The previous prime is 1252432450943. The next prime is 1252432451003. The reversal of 1252432450987 is 7890542342521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252432450987 - 2¹⁹ = 1252431926699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252433450987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626216225493 + 626216225494.

It is an arithmetic number, because the mean of its divisors is an integer number (626216225494).

Almost surely, 2^{1252432450987} is an apocalyptic number.

1252432450987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252432450987 is an equidigital number, since it uses as much as digits as its factorization.

1252432450987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 1252432450987 in words is "one trillion, two hundred fifty-two billion, four hundred thirty-two million, four hundred fifty thousand, nine hundred eighty-seven".