73307580328 has 8 divisors (see below), whose sum is σ = 137451713130. Its totient is φ = 36653790160.

The previous prime is 73307580289. The next prime is 73307580373. The reversal of 73307580328 is 82308570337.

It can be written as a sum of positive squares in only one way, i.e., 41331703204 + 31975877124 = 203302^2 + 178818^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4581723763 + ... + 4581723778.

Almost surely, 2^73307580328 is an apocalyptic number.

It is an amenable number.

73307580328 is a deficient number, since it is larger than the sum of its proper divisors (64144132802).

73307580328 is a wasteful number, since it uses less digits than its factorization.

73307580328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163447547 (or 9163447543 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

Subtracting 73307580328 from its reverse (82308570337), we obtain a palindrome (9000990009).

The spelling of 73307580328 in words is "seventy-three billion, three hundred seven million, five hundred eighty thousand, three hundred twenty-eight".