72432670733 has 8 divisors (see below), whose sum is σ = 72621240120. Its totient is φ = 72244345600.

The previous prime is 72432670721. The next prime is 72432670757. The reversal of 72432670733 is 33707623427.

It can be written as a sum of positive squares in 4 ways, for example, as 22219479844 + 50213190889 = 149062^2 + 224083^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72432670733 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 (72432670433) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 540473 + ... + 661041.

It is an arithmetic number, because the mean of its divisors is an integer number (9077655015).

Almost surely, 2^72432670733 is an apocalyptic number.

It is an amenable number.

72432670733 is a deficient number, since it is larger than the sum of its proper divisors (188569387).

72432670733 is a wasteful number, since it uses less digits than its factorization.

72432670733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122127.

The product of its (nonzero) digits is 889056, while the sum is 44.

The spelling of 72432670733 in words is "seventy-two billion, four hundred thirty-two million, six hundred seventy thousand, seven hundred thirty-three".