11546494021 has 2 divisors, whose sum is σ = 11546494022. Its totient is φ = 11546494020.

The previous prime is 11546493983. The next prime is 11546494049. The reversal of 11546494021 is 12049464511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6546589921 + 4999904100 = 80911^2 + 70710^2 .

It is a cyclic number.

It is not a de Polignac number, because 11546494021 - 2⁹ = 11546493509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11546464021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5773247010 + 5773247011.

It is an arithmetic number, because the mean of its divisors is an integer number (5773247011).

Almost surely, 2^11546494021 is an apocalyptic number.

It is an amenable number.

11546494021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11546494021 is an equidigital number, since it uses as much as digits as its factorization.

11546494021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 11546494021 in words is "eleven billion, five hundred forty-six million, four hundred ninety-four thousand, twenty-one".