72705076841 has 2 divisors, whose sum is σ = 72705076842. Its totient is φ = 72705076840.

The previous prime is 72705076711. The next prime is 72705076853. The reversal of 72705076841 is 14867050727.

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., 48666124816 + 24038952025 = 220604^2 + 155045^2 .

It is an emirp because it is prime and its reverse (14867050727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72705076841 - 2²⁶ = 72637967977 is a prime.

It is not a weakly prime, because it can be changed into another prime (72705079841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36352538420 + 36352538421.

It is an arithmetic number, because the mean of its divisors is an integer number (36352538421).

Almost surely, 2^72705076841 is an apocalyptic number.

It is an amenable number.

72705076841 is a deficient number, since it is larger than the sum of its proper divisors (1).

72705076841 is an equidigital number, since it uses as much as digits as its factorization.

72705076841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 72705076841 in words is "seventy-two billion, seven hundred five million, seventy-six thousand, eight hundred forty-one".