1251425170279 has 2 divisors, whose sum is σ = 1251425170280. Its totient is φ = 1251425170278.

The previous prime is 1251425170267. The next prime is 1251425170319. The reversal of 1251425170279 is 9720715241521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1251425170279 - 2⁹ = 1251425169767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1251425170579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625712585139 + 625712585140.

It is an arithmetic number, because the mean of its divisors is an integer number (625712585140).

Almost surely, 2^{1251425170279} is an apocalyptic number.

1251425170279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251425170279 is an equidigital number, since it uses as much as digits as its factorization.

1251425170279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 1251425170279 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-five million, one hundred seventy thousand, two hundred seventy-nine".