1276253146429 has 2 divisors, whose sum is σ = 1276253146430. Its totient is φ = 1276253146428.

The previous prime is 1276253146417. The next prime is 1276253146499. The reversal of 1276253146429 is 9246413526721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 892454311204 + 383798835225 = 944698^2 + 619515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276253146429 - 2²¹ = 1276251049277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276253146409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638126573214 + 638126573215.

It is an arithmetic number, because the mean of its divisors is an integer number (638126573215).

Almost surely, 2^{1276253146429} is an apocalyptic number.

It is an amenable number.

1276253146429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276253146429 is an equidigital number, since it uses as much as digits as its factorization.

1276253146429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 52.

The spelling of 1276253146429 in words is "one trillion, two hundred seventy-six billion, two hundred fifty-three million, one hundred forty-six thousand, four hundred twenty-nine".