1125978675439 has 2 divisors, whose sum is σ = 1125978675440. Its totient is φ = 1125978675438.

The previous prime is 1125978675421. The next prime is 1125978675541. The reversal of 1125978675439 is 9345768795211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125978675439 - 2⁵ = 1125978675407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125978673439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562989337719 + 562989337720.

It is an arithmetic number, because the mean of its divisors is an integer number (562989337720).

Almost surely, 2^{1125978675439} is an apocalyptic number.

1125978675439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125978675439 is an equidigital number, since it uses as much as digits as its factorization.

1125978675439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 67.

The spelling of 1125978675439 in words is "one trillion, one hundred twenty-five billion, nine hundred seventy-eight million, six hundred seventy-five thousand, four hundred thirty-nine".