41997858022849 has 2 divisors, whose sum is σ = 41997858022850. Its totient is φ = 41997858022848.

The previous prime is 41997858022847. The next prime is 41997858022921. The reversal of 41997858022849 is 94822085879914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31453387822224 + 10544470200625 = 5608332^2 + 3247225^2 .

It is a cyclic number.

It is not a de Polignac number, because 41997858022849 - 2¹ = 41997858022847 is a prime.

Together with 41997858022847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41997858022847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20998929011424 + 20998929011425.

It is an arithmetic number, because the mean of its divisors is an integer number (20998929011425).

Almost surely, 2^{41997858022849} is an apocalyptic number.

It is an amenable number.

41997858022849 is a deficient number, since it is larger than the sum of its proper divisors (1).

41997858022849 is an equidigital number, since it uses as much as digits as its factorization.

41997858022849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 836075520, while the sum is 76.

The spelling of 41997858022849 in words is "forty-one trillion, nine hundred ninety-seven billion, eight hundred fifty-eight million, twenty-two thousand, eight hundred forty-nine".