41454553781 has 2 divisors, whose sum is σ = 41454553782. Its totient is φ = 41454553780.

The previous prime is 41454553747. The next prime is 41454553849. The reversal of 41454553781 is 18735545414.

41454553781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39756372100 + 1698181681 = 199390^2 + 41209^2 .

It is a cyclic number.

It is not a de Polignac number, because 41454553781 - 2⁶ = 41454553717 is a prime.

It is a super-2 number, since 2×41454553781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41459553781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20727276890 + 20727276891.

It is an arithmetic number, because the mean of its divisors is an integer number (20727276891).

Almost surely, 2^41454553781 is an apocalyptic number.

It is an amenable number.

41454553781 is a deficient number, since it is larger than the sum of its proper divisors (1).

41454553781 is an equidigital number, since it uses as much as digits as its factorization.

41454553781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344000, while the sum is 47.

The spelling of 41454553781 in words is "forty-one billion, four hundred fifty-four million, five hundred fifty-three thousand, seven hundred eighty-one".