72015676322 has 8 divisors (see below), whose sum is σ = 109503288876. Its totient is φ = 35514580032.

The previous prime is 72015676321. The next prime is 72015676339. The reversal of 72015676322 is 22367651027.

It can be written as a sum of positive squares in 2 ways, for example, as 71840616961 + 175059361 = 268031^2 + 13231^2 .

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

It is a super-2 number, since 2×72015676322² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72015676322.

It is not an unprimeable number, because it can be changed into a prime (72015676321) 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, 246628883 + ... + 246629174.

Almost surely, 2^72015676322 is an apocalyptic number.

72015676322 is a deficient number, since it is larger than the sum of its proper divisors (37487612554).

72015676322 is a wasteful number, since it uses less digits than its factorization.

72015676322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493258132.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 72015676322 in words is "seventy-two billion, fifteen million, six hundred seventy-six thousand, three hundred twenty-two".