11554504021469 has 2 divisors, whose sum is σ = 11554504021470. Its totient is φ = 11554504021468.

The previous prime is 11554504021451. The next prime is 11554504021561. The reversal of 11554504021469 is 96412040545511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11473869036100 + 80634985369 = 3387310^2 + 283963^2 .

It is a cyclic number.

It is not a de Polignac number, because 11554504021469 - 2¹² = 11554504017373 is a prime.

It is a super-2 number, since 2×11554504021469² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11554504041469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777252010734 + 5777252010735.

It is an arithmetic number, because the mean of its divisors is an integer number (5777252010735).

Almost surely, 2^{11554504021469} is an apocalyptic number.

It is an amenable number.

11554504021469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11554504021469 is an equidigital number, since it uses as much as digits as its factorization.

11554504021469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 11554504021469 in words is "eleven trillion, five hundred fifty-four billion, five hundred four million, twenty-one thousand, four hundred sixty-nine".