1275560089647 has 4 divisors (see below), whose sum is σ = 1700746786200. Its totient is φ = 850373393096.

The previous prime is 1275560089589. The next prime is 1275560089669. The reversal of 1275560089647 is 7469800655721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1275560089647 - 2⁷ = 1275560089519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275560089247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212593348272 + ... + 212593348277.

It is an arithmetic number, because the mean of its divisors is an integer number (425186696550).

Almost surely, 2^{1275560089647} is an apocalyptic number.

1275560089647 is a deficient number, since it is larger than the sum of its proper divisors (425186696553).

1275560089647 is an equidigital number, since it uses as much as digits as its factorization.

1275560089647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425186696552.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 1275560089647 in words is "one trillion, two hundred seventy-five billion, five hundred sixty million, eighty-nine thousand, six hundred forty-seven".