73191189645 has 96 divisors (see below), whose sum is σ = 146997227520. Its totient is φ = 32996246400.

The previous prime is 73191189641. The next prime is 73191189653. The reversal of 73191189645 is 54698119137.

It is not a de Polignac number, because 73191189645 - 2² = 73191189641 is a prime.

It is a super-3 number, since 3×73191189645³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73191189591 and 73191189600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73191189641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36107122 + ... + 36109148.

It is an arithmetic number, because the mean of its divisors is an integer number (1531221120).

Almost surely, 2^73191189645 is an apocalyptic number.

It is an amenable number.

73191189645 is an abundant number, since it is smaller than the sum of its proper divisors (73806037875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73191189645 is a wasteful number, since it uses less digits than its factorization.

73191189645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3572 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 73191189645 in words is "seventy-three billion, one hundred ninety-one million, one hundred eighty-nine thousand, six hundred forty-five".