1126421533637 has 2 divisors, whose sum is σ = 1126421533638. Its totient is φ = 1126421533636.

The previous prime is 1126421533603. The next prime is 1126421533649. The reversal of 1126421533637 is 7363351246211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090372435681 + 36049097956 = 1044209^2 + 189866^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126421533637 - 2¹⁶ = 1126421468101 is a prime.

It is a super-2 number, since 2×1126421533637² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126421533537) 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 as a sum of consecutive naturals, namely, 563210766818 + 563210766819.

It is an arithmetic number, because the mean of its divisors is an integer number (563210766819).

Almost surely, 2^{1126421533637} is an apocalyptic number.

It is an amenable number.

1126421533637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126421533637 is an equidigital number, since it uses as much as digits as its factorization.

1126421533637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

Adding to 1126421533637 its reverse (7363351246211), we get a palindrome (8489772779848).

The spelling of 1126421533637 in words is "one trillion, one hundred twenty-six billion, four hundred twenty-one million, five hundred thirty-three thousand, six hundred thirty-seven".