729459940005 has 32 divisors (see below), whose sum is σ = 1296860075520. Its totient is φ = 389032580160.

The previous prime is 729459939991. The next prime is 729459940067. The reversal of 729459940005 is 500049954927.

729459940005 is a `hidden beast` number, since 7 + 2 + 9 + 4 + 599 + 40 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 729459940005 - 2⁸ = 729459939749 is a prime.

It is a super-2 number, since 2×729459940005² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5242635 + ... + 5379975.

It is an arithmetic number, because the mean of its divisors is an integer number (40526877360).

Almost surely, 2^729459940005 is an apocalyptic number.

It is an amenable number.

729459940005 is a deficient number, since it is larger than the sum of its proper divisors (567400135515).

729459940005 is a wasteful number, since it uses less digits than its factorization.

729459940005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176698 (or 176692 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 729459940005 in words is "seven hundred twenty-nine billion, four hundred fifty-nine million, nine hundred forty thousand, five".