41923791989 has 2 divisors, whose sum is σ = 41923791990. Its totient is φ = 41923791988.

The previous prime is 41923791947. The next prime is 41923791991. The reversal of 41923791989 is 98919732914.

41923791989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34537248964 + 7386543025 = 185842^2 + 85945^2 .

It is a cyclic number.

It is not a de Polignac number, because 41923791989 - 2²⁰ = 41922743413 is a prime.

It is a super-2 number, since 2×41923791989² (a number of 22 digits) contains 22 as substring.

Together with 41923791991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41923791929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20961895994 + 20961895995.

It is an arithmetic number, because the mean of its divisors is an integer number (20961895995).

Almost surely, 2^41923791989 is an apocalyptic number.

It is an amenable number.

41923791989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41923791989 is an equidigital number, since it uses as much as digits as its factorization.

41923791989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 62.

The spelling of 41923791989 in words is "forty-one billion, nine hundred twenty-three million, seven hundred ninety-one thousand, nine hundred eighty-nine".