72354780112 has 20 divisors (see below), whose sum is σ = 148433703876. Its totient is φ = 34049308160.

The previous prime is 72354780103. The next prime is 72354780131. The reversal of 72354780112 is 21108745327.

It can be written as a sum of positive squares in 2 ways, for example, as 65415223696 + 6939556416 = 255764^2 + 83304^2 .

It is a congruent number.

It is an unprimeable number.

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, 133004839 + ... + 133005382.

Almost surely, 2^72354780112 is an apocalyptic number.

It is an amenable number.

72354780112 is an abundant number, since it is smaller than the sum of its proper divisors (76078923764).

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

72354780112 is a wasteful number, since it uses less digits than its factorization.

72354780112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266010246 (or 266010240 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 72354780112 in words is "seventy-two billion, three hundred fifty-four million, seven hundred eighty thousand, one hundred twelve".