73208611057 has 4 divisors (see below), whose sum is σ = 73211567076. Its totient is φ = 73205655040.

The previous prime is 73208611051. The next prime is 73208611061. The reversal of 73208611057 is 75011680237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75011680237 = 13 ⋅5770129249.

It can be written as a sum of positive squares in 2 ways, for example, as 457574881 + 72751036176 = 21391^2 + 269724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73208611057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73208611051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440544 + ... + 1490497.

It is an arithmetic number, because the mean of its divisors is an integer number (18302891769).

Almost surely, 2^73208611057 is an apocalyptic number.

It is an amenable number.

73208611057 is a deficient number, since it is larger than the sum of its proper divisors (2956019).

73208611057 is a wasteful number, since it uses less digits than its factorization.

73208611057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956018.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 73208611057 in words is "seventy-three billion, two hundred eight million, six hundred eleven thousand, fifty-seven".