1276552564243 has 8 divisors (see below), whose sum is σ = 1394037003456. Its totient is φ = 1159307159400.

The previous prime is 1276552564193. The next prime is 1276552564333. The reversal of 1276552564243 is 3424652556721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1276552564243 - 2⁹ = 1276552563731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1276552564943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59747421 + ... + 59768782.

It is an arithmetic number, because the mean of its divisors is an integer number (174254625432).

Almost surely, 2^{1276552564243} is an apocalyptic number.

1276552564243 is a deficient number, since it is larger than the sum of its proper divisors (117484439213).

1276552564243 is a wasteful number, since it uses less digits than its factorization.

1276552564243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119517185.

The product of its digits is 12096000, while the sum is 52.

The spelling of 1276552564243 in words is "one trillion, two hundred seventy-six billion, five hundred fifty-two million, five hundred sixty-four thousand, two hundred forty-three".