72804077216 has 24 divisors (see below), whose sum is σ = 154358645364. Its totient is φ = 33601881600.

The previous prime is 72804077201. The next prime is 72804077219. The reversal of 72804077216 is 61277040827.

It can be written as a sum of positive squares in 2 ways, for example, as 61109817616 + 11694259600 = 247204^2 + 108140^2 .

It is not an unprimeable number, because it can be changed into a prime (72804077219) 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 3 ways as a sum of consecutive naturals, for example, 87504485 + ... + 87505316.

Almost surely, 2^72804077216 is an apocalyptic number.

It is an amenable number.

72804077216 is an abundant number, since it is smaller than the sum of its proper divisors (81554568148).

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

72804077216 is a wasteful number, since it uses less digits than its factorization.

72804077216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175009824 (or 175009816 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 72804077216 in words is "seventy-two billion, eight hundred four million, seventy-seven thousand, two hundred sixteen".