73405037117 has 2 divisors, whose sum is σ = 73405037118. Its totient is φ = 73405037116.

The previous prime is 73405037087. The next prime is 73405037177. The reversal of 73405037117 is 71173050437.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45109087321 + 28295949796 = 212389^2 + 168214^2 .

It is a cyclic number.

It is not a de Polignac number, because 73405037117 - 2²⁸ = 73136601661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73405037177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36702518558 + 36702518559.

It is an arithmetic number, because the mean of its divisors is an integer number (36702518559).

Almost surely, 2^73405037117 is an apocalyptic number.

It is an amenable number.

73405037117 is a deficient number, since it is larger than the sum of its proper divisors (1).

73405037117 is an equidigital number, since it uses as much as digits as its factorization.

73405037117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 38.

The spelling of 73405037117 in words is "seventy-three billion, four hundred five million, thirty-seven thousand, one hundred seventeen".