72578728069230 has 32 divisors (see below), whose sum is σ = 174196327140000. Its totient is φ = 19353507510272.

The previous prime is 72578728069213. The next prime is 72578728069231. The reversal of 72578728069230 is 3296082787527.

72578728069230 = 4259656² + 4259657² + ... + 4259659².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72578728069231) 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 15 ways as a sum of consecutive naturals, for example, 50528355 + ... + 51944894.

It is an arithmetic number, because the mean of its divisors is an integer number (5443635223125).

Almost surely, 2^{72578728069230} is an apocalyptic number.

72578728069230 is an abundant number, since it is smaller than the sum of its proper divisors (101617599070770).

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

72578728069230 is a wasteful number, since it uses less digits than its factorization.

72578728069230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102496868.

The product of its (nonzero) digits is 142248960, while the sum is 66.

The spelling of 72578728069230 in words is "seventy-two trillion, five hundred seventy-eight billion, seven hundred twenty-eight million, sixty-nine thousand, two hundred thirty".