73172349071530 has 8 divisors (see below), whose sum is σ = 131710228328772. Its totient is φ = 29268939628608.

The previous prime is 73172349071513. The next prime is 73172349071561. The reversal of 73172349071530 is 3517094327137.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63270395324361 + 9901953747169 = 7954269^2 + 3146737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3658617453567 + ... + 3658617453586.

Almost surely, 2^{73172349071530} is an apocalyptic number.

73172349071530 is a deficient number, since it is larger than the sum of its proper divisors (58537879257242).

73172349071530 is a wasteful number, since it uses less digits than its factorization.

73172349071530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7317234907160.

The product of its (nonzero) digits is 3333960, while the sum is 52.

The spelling of 73172349071530 in words is "seventy-three trillion, one hundred seventy-two billion, three hundred forty-nine million, seventy-one thousand, five hundred thirty".