72389829726 has 48 divisors (see below), whose sum is σ = 167128672464. Its totient is φ = 22565866752.

The previous prime is 72389829689. The next prime is 72389829727. The reversal of 72389829726 is 62792898327.

72389829726 is a `hidden beast` number, since 7 + 238 + 98 + 297 + 26 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72389829727) 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 23 ways as a sum of consecutive naturals, for example, 705360 + ... + 801443.

It is an arithmetic number, because the mean of its divisors is an integer number (3481847343).

Almost surely, 2^72389829726 is an apocalyptic number.

72389829726 is an abundant number, since it is smaller than the sum of its proper divisors (94738842738).

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

72389829726 is a wasteful number, since it uses less digits than its factorization.

72389829726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506985 (or 1506982 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 72389829726 in words is "seventy-two billion, three hundred eighty-nine million, eight hundred twenty-nine thousand, seven hundred twenty-six".