729364436431 has 4 divisors (see below), whose sum is σ = 732549434200. Its totient is φ = 726179438664.

The previous prime is 729364436417. The next prime is 729364436441. The reversal of 729364436431 is 134634463927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134634463927 = 4271 ⋅31522937.

It is a cyclic number.

It is not a de Polignac number, because 729364436431 - 2⁷ = 729364436303 is a prime.

It is a super-2 number, since 2×729364436431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729364436401) 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 3 ways as a sum of consecutive naturals, for example, 1592498541 + ... + 1592498998.

It is an arithmetic number, because the mean of its divisors is an integer number (183137358550).

Almost surely, 2^729364436431 is an apocalyptic number.

729364436431 is a deficient number, since it is larger than the sum of its proper divisors (3184997769).

729364436431 is a wasteful number, since it uses less digits than its factorization.

729364436431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184997768.

The product of its digits is 7838208, while the sum is 52.

The spelling of 729364436431 in words is "seven hundred twenty-nine billion, three hundred sixty-four million, four hundred thirty-six thousand, four hundred thirty-one".