11454199481 has 2 divisors, whose sum is σ = 11454199482. Its totient is φ = 11454199480.

The previous prime is 11454199453. The next prime is 11454199487. The reversal of 11454199481 is 18499145411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10456903081 + 997296400 = 102259^2 + 31580^2 .

It is a cyclic number.

It is not a de Polignac number, because 11454199481 - 2⁶ = 11454199417 is a prime.

It is a super-2 number, since 2×11454199481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11454199487) 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, 5727099740 + 5727099741.

It is an arithmetic number, because the mean of its divisors is an integer number (5727099741).

Almost surely, 2^11454199481 is an apocalyptic number.

It is an amenable number.

11454199481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11454199481 is an equidigital number, since it uses as much as digits as its factorization.

11454199481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 47.

The spelling of 11454199481 in words is "eleven billion, four hundred fifty-four million, one hundred ninety-nine thousand, four hundred eighty-one".