73471272605 has 16 divisors (see below), whose sum is σ = 93358110384. Its totient is φ = 55315768320.

The previous prime is 73471272599. The next prime is 73471272607. The reversal of 73471272605 is 50627217437.

It can be written as a sum of positive squares in 8 ways, for example, as 30229733689 + 43241538916 = 173867^2 + 207946^2 .

It is a de Polignac number, because none of the positive numbers 2^k-73471272605 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73471272607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269835 + ... + 2301975.

It is an arithmetic number, because the mean of its divisors is an integer number (5834881899).

Almost surely, 2^73471272605 is an apocalyptic number.

It is an amenable number.

73471272605 is a deficient number, since it is larger than the sum of its proper divisors (19886837779).

73471272605 is a wasteful number, since it uses less digits than its factorization.

73471272605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59056.

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 73471272605 in words is "seventy-three billion, four hundred seventy-one million, two hundred seventy-two thousand, six hundred five".