41401631163509 has 2 divisors, whose sum is σ = 41401631163510. Its totient is φ = 41401631163508.

The previous prime is 41401631163499. The next prime is 41401631163583. The reversal of 41401631163509 is 90536113610414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31767764964100 + 9633866199409 = 5636290^2 + 3103847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41401631163509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41401631163509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41401631163589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20700815581754 + 20700815581755.

It is an arithmetic number, because the mean of its divisors is an integer number (20700815581755).

Almost surely, 2^{41401631163509} is an apocalyptic number.

It is an amenable number.

41401631163509 is a deficient number, since it is larger than the sum of its proper divisors (1).

41401631163509 is an equidigital number, since it uses as much as digits as its factorization.

41401631163509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 41401631163509 in words is "forty-one trillion, four hundred one billion, six hundred thirty-one million, one hundred sixty-three thousand, five hundred nine".