73406666741 has 2 divisors, whose sum is σ = 73406666742. Its totient is φ = 73406666740.

The previous prime is 73406666681. The next prime is 73406666747. The reversal of 73406666741 is 14766660437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39251930641 + 34154736100 = 198121^2 + 184810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73406666741 is a prime.

It is a super-2 number, since 2×73406666741² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73406666741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73406666747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36703333370 + 36703333371.

It is an arithmetic number, because the mean of its divisors is an integer number (36703333371).

Almost surely, 2^73406666741 is an apocalyptic number.

It is an amenable number.

73406666741 is a deficient number, since it is larger than the sum of its proper divisors (1).

73406666741 is an equidigital number, since it uses as much as digits as its factorization.

73406666741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 73406666741 in words is "seventy-three billion, four hundred six million, six hundred sixty-six thousand, seven hundred forty-one".