1276252627763 has 4 divisors (see below), whose sum is σ = 1303406939040. Its totient is φ = 1249098316488.

The previous prime is 1276252627747. The next prime is 1276252627781. The reversal of 1276252627763 is 3677262526721.

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 1276252627763 - 2⁴ = 1276252627747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1276252627699 and 1276252627708.

It is not an unprimeable number, because it can be changed into a prime (1276252627723) 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 3 ways as a sum of consecutive naturals, for example, 13577155568 + ... + 13577155661.

It is an arithmetic number, because the mean of its divisors is an integer number (325851734760).

Almost surely, 2^{1276252627763} is an apocalyptic number.

1276252627763 is a deficient number, since it is larger than the sum of its proper divisors (27154311277).

1276252627763 is an equidigital number, since it uses as much as digits as its factorization.

1276252627763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27154311276.

The product of its digits is 17781120, while the sum is 56.

The spelling of 1276252627763 in words is "one trillion, two hundred seventy-six billion, two hundred fifty-two million, six hundred twenty-seven thousand, seven hundred sixty-three".