72411737647169 has 2 divisors, whose sum is σ = 72411737647170. Its totient is φ = 72411737647168.

The previous prime is 72411737647141. The next prime is 72411737647181. The reversal of 72411737647169 is 96174673711427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69309154844944 + 3102582802225 = 8325212^2 + 1761415^2 .

It is a cyclic number.

It is not a de Polignac number, because 72411737647169 - 2¹² = 72411737643073 is a prime.

It is a super-2 number, since 2×72411737647169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72411737647069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36205868823584 + 36205868823585.

It is an arithmetic number, because the mean of its divisors is an integer number (36205868823585).

Almost surely, 2^{72411737647169} is an apocalyptic number.

It is an amenable number.

72411737647169 is a deficient number, since it is larger than the sum of its proper divisors (1).

72411737647169 is an equidigital number, since it uses as much as digits as its factorization.

72411737647169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74680704, while the sum is 65.

The spelling of 72411737647169 in words is "seventy-two trillion, four hundred eleven billion, seven hundred thirty-seven million, six hundred forty-seven thousand, one hundred sixty-nine".