72544330692 has 72 divisors (see below), whose sum is σ = 193553942400. Its totient is φ = 22846235328.

The previous prime is 72544330603. The next prime is 72544330717. The reversal of 72544330692 is 29603344527.

72544330692 is a `hidden beast` number, since 7 + 254 + 4 + 3 + 306 + 92 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106534 + ... + 395522.

It is an arithmetic number, because the mean of its divisors is an integer number (2688249200).

Almost surely, 2^72544330692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72544330692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96776971200).

72544330692 is an abundant number, since it is smaller than the sum of its proper divisors (121009611708).

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

72544330692 is a wasteful number, since it uses less digits than its factorization.

72544330692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289385 (or 289380 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 72544330692 in words is "seventy-two billion, five hundred forty-four million, three hundred thirty thousand, six hundred ninety-two".