73618736189 has 4 divisors (see below), whose sum is σ = 73631778624. Its totient is φ = 73605693756.

The previous prime is 73618736167. The next prime is 73618736207. The reversal of 73618736189 is 98163781637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98163781637 = 19 ⋅5166514823.

It is a cyclic number.

It is not a de Polignac number, because 73618736189 - 2⁸ = 73618735933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73618735189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6512747 + ... + 6524040.

It is an arithmetic number, because the mean of its divisors is an integer number (18407944656).

Almost surely, 2^73618736189 is an apocalyptic number.

It is an amenable number.

73618736189 is a deficient number, since it is larger than the sum of its proper divisors (13042435).

73618736189 is a wasteful number, since it uses less digits than its factorization.

73618736189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042434.

The product of its digits is 9144576, while the sum is 59.

The spelling of 73618736189 in words is "seventy-three billion, six hundred eighteen million, seven hundred thirty-six thousand, one hundred eighty-nine".