73128908189375 has 10 divisors (see below), whose sum is σ = 91381883674224. Its totient is φ = 58503126551000.

The previous prime is 73128908189369. The next prime is 73128908189401. The reversal of 73128908189375 is 57398180982137.

It is not a de Polignac number, because 73128908189375 - 2⁴⁰ = 72029396561599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73128908189299 and 73128908189308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 58503125927 + ... + 58503127176.

Almost surely, 2^{73128908189375} is an apocalyptic number.

73128908189375 is a deficient number, since it is larger than the sum of its proper divisors (18252975484849).

73128908189375 is an equidigital number, since it uses as much as digits as its factorization.

73128908189375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117006253123 (or 117006253108 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 71.

The spelling of 73128908189375 in words is "seventy-three trillion, one hundred twenty-eight billion, nine hundred eight million, one hundred eighty-nine thousand, three hundred seventy-five".