11448001681 has 2 divisors, whose sum is σ = 11448001682. Its totient is φ = 11448001680.

The previous prime is 11448001597. The next prime is 11448001709. The reversal of 11448001681 is 18610084411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10386871056 + 1061130625 = 101916^2 + 32575^2 .

It is a cyclic number.

It is not a de Polignac number, because 11448001681 - 2¹³ = 11447993489 is a prime.

It is a super-2 number, since 2×11448001681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11448001781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5724000840 + 5724000841.

It is an arithmetic number, because the mean of its divisors is an integer number (5724000841).

Almost surely, 2^11448001681 is an apocalyptic number.

It is an amenable number.

11448001681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11448001681 is an equidigital number, since it uses as much as digits as its factorization.

11448001681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 34.

The spelling of 11448001681 in words is "eleven billion, four hundred forty-eight million, one thousand, six hundred eighty-one".