14553453821 has 2 divisors, whose sum is σ = 14553453822. Its totient is φ = 14553453820.

The previous prime is 14553453799. The next prime is 14553453829. The reversal of 14553453821 is 12835435541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14468721796 + 84732025 = 120286^2 + 9205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14553453821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14553453829) 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, 7276726910 + 7276726911.

It is an arithmetic number, because the mean of its divisors is an integer number (7276726911).

Almost surely, 2^14553453821 is an apocalyptic number.

It is an amenable number.

14553453821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14553453821 is an equidigital number, since it uses as much as digits as its factorization.

14553453821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 41.

The spelling of 14553453821 in words is "fourteen billion, five hundred fifty-three million, four hundred fifty-three thousand, eight hundred twenty-one".