41357272511981 has 2 divisors, whose sum is σ = 41357272511982. Its totient is φ = 41357272511980.

The previous prime is 41357272511969. The next prime is 41357272512019. The reversal of 41357272511981 is 18911527275314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26820331957225 + 14536940554756 = 5178835^2 + 3812734^2 .

It is a cyclic number.

It is not a de Polignac number, because 41357272511981 - 2⁶ = 41357272511917 is a prime.

It is a super-2 number, since 2×41357272511981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41357272511081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20678636255990 + 20678636255991.

It is an arithmetic number, because the mean of its divisors is an integer number (20678636255991).

Almost surely, 2^{41357272511981} is an apocalyptic number.

It is an amenable number.

41357272511981 is a deficient number, since it is larger than the sum of its proper divisors (1).

41357272511981 is an equidigital number, since it uses as much as digits as its factorization.

41357272511981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 56.

The spelling of 41357272511981 in words is "forty-one trillion, three hundred fifty-seven billion, two hundred seventy-two million, five hundred eleven thousand, nine hundred eighty-one".