1326639880763 has 2 divisors, whose sum is σ = 1326639880764. Its totient is φ = 1326639880762.

The previous prime is 1326639880747. The next prime is 1326639880801. The reversal of 1326639880763 is 3670889366231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1326639880763 - 2⁴ = 1326639880747 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1326639880696 and 1326639880705.

It is not a weakly prime, because it can be changed into another prime (1326639880733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663319940381 + 663319940382.

It is an arithmetic number, because the mean of its divisors is an integer number (663319940382).

Almost surely, 2^{1326639880763} is an apocalyptic number.

1326639880763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326639880763 is an equidigital number, since it uses as much as digits as its factorization.

1326639880763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 1326639880763 in words is "one trillion, three hundred twenty-six billion, six hundred thirty-nine million, eight hundred eighty thousand, seven hundred sixty-three".