729397933081 has 8 divisors (see below), whose sum is σ = 767798005280. Its totient is φ = 690998931648.

The previous prime is 729397933037. The next prime is 729397933127. The reversal of 729397933081 is 180339793927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 729397933081 - 2²¹ = 729395835929 is a prime.

It is a super-2 number, since 2×729397933081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729392933081) 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 7 ways as a sum of consecutive naturals, for example, 1395610 + ... + 1845676.

It is an arithmetic number, because the mean of its divisors is an integer number (95974750660).

Almost surely, 2^729397933081 is an apocalyptic number.

It is an amenable number.

729397933081 is a deficient number, since it is larger than the sum of its proper divisors (38400072199).

729397933081 is a wasteful number, since it uses less digits than its factorization.

729397933081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535383.

The product of its (nonzero) digits is 15431472, while the sum is 61.

The spelling of 729397933081 in words is "seven hundred twenty-nine billion, three hundred ninety-seven million, nine hundred thirty-three thousand, eighty-one".