73441665265 has 4 divisors (see below), whose sum is σ = 88129998324. Its totient is φ = 58753332208.

The previous prime is 73441665251. The next prime is 73441665313. The reversal of 73441665265 is 56256614437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56256614437 = 43 ⋅1308293359.

It can be written as a sum of positive squares in 2 ways, for example, as 8338611856 + 65103053409 = 91316^2 + 255153^2 .

It is a cyclic number.

It is not a de Polignac number, because 73441665265 - 2⁹ = 73441664753 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7344166522 + ... + 7344166531.

It is an arithmetic number, because the mean of its divisors is an integer number (22032499581).

Almost surely, 2^73441665265 is an apocalyptic number.

It is an amenable number.

73441665265 is a deficient number, since it is larger than the sum of its proper divisors (14688333059).

73441665265 is a wasteful number, since it uses less digits than its factorization.

73441665265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14688333058.

The product of its digits is 3628800, while the sum is 49.

The spelling of 73441665265 in words is "seventy-three billion, four hundred forty-one million, six hundred sixty-five thousand, two hundred sixty-five".