729182349640 has 32 divisors (see below), whose sum is σ = 1640723832000. Its totient is φ = 291661642944.

The previous prime is 729182349629. The next prime is 729182349641. The reversal of 729182349640 is 46943281927.

It is a super-2 number, since 2×729182349640² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (729182349641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733951 + ... + 1413169.

It is an arithmetic number, because the mean of its divisors is an integer number (51272619750).

Almost surely, 2^729182349640 is an apocalyptic number.

It is an amenable number.

729182349640 is an abundant number, since it is smaller than the sum of its proper divisors (911541482360).

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

729182349640 is a wasteful number, since it uses less digits than its factorization.

729182349640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706069 (or 706065 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 729182349640 in words is "seven hundred twenty-nine billion, one hundred eighty-two million, three hundred forty-nine thousand, six hundred forty".