1126821504647 has 2 divisors, whose sum is σ = 1126821504648. Its totient is φ = 1126821504646.

The previous prime is 1126821504617. The next prime is 1126821504649. The reversal of 1126821504647 is 7464051286211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1126821504647 - 2³⁰ = 1125747762823 is a prime.

Together with 1126821504649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126821504649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563410752323 + 563410752324.

It is an arithmetic number, because the mean of its divisors is an integer number (563410752324).

Almost surely, 2^{1126821504647} is an apocalyptic number.

1126821504647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126821504647 is an equidigital number, since it uses as much as digits as its factorization.

1126821504647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 1126821504647 in words is "one trillion, one hundred twenty-six billion, eight hundred twenty-one million, five hundred four thousand, six hundred forty-seven".