41400239989 has 2 divisors, whose sum is σ = 41400239990. Its totient is φ = 41400239988.

The previous prime is 41400239977. The next prime is 41400240031. The reversal of 41400239989 is 98993200414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34240541764 + 7159698225 = 185042^2 + 84615^2 .

It is a cyclic number.

It is not a de Polignac number, because 41400239989 - 2⁵ = 41400239957 is a prime.

It is a super-2 number, since 2×41400239989² (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 (41400239939) 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, 20700119994 + 20700119995.

It is an arithmetic number, because the mean of its divisors is an integer number (20700119995).

Almost surely, 2^41400239989 is an apocalyptic number.

It is an amenable number.

41400239989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41400239989 is an equidigital number, since it uses as much as digits as its factorization.

41400239989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 41400239989 in words is "forty-one billion, four hundred million, two hundred thirty-nine thousand, nine hundred eighty-nine".