73509307876 has 27 divisors (see below), whose sum is σ = 132955273353. Its totient is φ = 35560886160.

The previous prime is 73509307853. The next prime is 73509307877. The reversal of 73509307876 is 67870390537.

The square root of 73509307876 is 271126.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 42242580900 + 31266726976 = 205530^2 + 176824^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73509307877) 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 8 ways as a sum of consecutive naturals, for example, 16807626 + ... + 16811998.

Almost surely, 2^73509307876 is an apocalyptic number.

73509307876 is the 271126-th square number.

It is an amenable number.

73509307876 is a deficient number, since it is larger than the sum of its proper divisors (59445965477).

73509307876 is an frugal number, since it uses more digits than its factorization.

73509307876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812 (or 4406 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 55.

The spelling of 73509307876 in words is "seventy-three billion, five hundred nine million, three hundred seven thousand, eight hundred seventy-six".