6729999361 has 4 divisors (see below), whose sum is σ = 6732030400. Its totient is φ = 6727968324.

The previous prime is 6729999349. The next prime is 6729999401. The reversal of 6729999361 is 1639999276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6729999361 - 2⁷ = 6729999233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6729999361.

It is not an unprimeable number, because it can be changed into a prime (6729997361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010541 + ... + 1017178.

It is an arithmetic number, because the mean of its divisors is an integer number (1683007600).

Almost surely, 2^6729999361 is an apocalyptic number.

It is an amenable number.

6729999361 is a deficient number, since it is larger than the sum of its proper divisors (2031039).

6729999361 is a wasteful number, since it uses less digits than its factorization.

6729999361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031038.

The product of its digits is 9920232, while the sum is 61.

The square root of 6729999361 is about 82036.5733133704. The cubic root of 6729999361 is about 1888.0131188379.

The spelling of 6729999361 in words is "six billion, seven hundred twenty-nine million, nine hundred ninety-nine thousand, three hundred sixty-one".