1275450695329 has 2 divisors, whose sum is σ = 1275450695330. Its totient is φ = 1275450695328.

The previous prime is 1275450695293. The next prime is 1275450695333. The reversal of 1275450695329 is 9235960545721.

It is a happy number.

Together with previous prime (1275450695293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959665140625 + 315785554704 = 979625^2 + 561948^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275450695329 - 2¹⁵ = 1275450662561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1275450695929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637725347664 + 637725347665.

It is an arithmetic number, because the mean of its divisors is an integer number (637725347665).

Almost surely, 2^{1275450695329} is an apocalyptic number.

It is an amenable number.

1275450695329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275450695329 is an equidigital number, since it uses as much as digits as its factorization.

1275450695329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412000, while the sum is 58.

The spelling of 1275450695329 in words is "one trillion, two hundred seventy-five billion, four hundred fifty million, six hundred ninety-five thousand, three hundred twenty-nine".