41154105377821 has 2 divisors, whose sum is σ = 41154105377822. Its totient is φ = 41154105377820.

The previous prime is 41154105377809. The next prime is 41154105377843. The reversal of 41154105377821 is 12877350145114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25841057228100 + 15313048149721 = 5083410^2 + 3913189^2 .

It is a cyclic number.

It is not a de Polignac number, because 41154105377821 - 2²⁹ = 41153568506909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41154105377881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20577052688910 + 20577052688911.

It is an arithmetic number, because the mean of its divisors is an integer number (20577052688911).

Almost surely, 2^{41154105377821} is an apocalyptic number.

It is an amenable number.

41154105377821 is a deficient number, since it is larger than the sum of its proper divisors (1).

41154105377821 is an equidigital number, since it uses as much as digits as its factorization.

41154105377821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 41154105377821 in words is "forty-one trillion, one hundred fifty-four billion, one hundred five million, three hundred seventy-seven thousand, eight hundred twenty-one".