6709729823 has 4 divisors (see below), whose sum is σ = 6852490080. Its totient is φ = 6566969568.

The previous prime is 6709729783. The next prime is 6709729837. The reversal of 6709729823 is 3289279076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6709729823 - 2²⁰ = 6708681247 is a prime.

It is a super-2 number, since 2×6709729823² = 90040948595311222658, which 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 (6709729843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71380058 + ... + 71380151.

It is an arithmetic number, because the mean of its divisors is an integer number (1713122520).

Almost surely, 2^6709729823 is an apocalyptic number.

6709729823 is a deficient number, since it is larger than the sum of its proper divisors (142760257).

6709729823 is a wasteful number, since it uses less digits than its factorization.

6709729823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142760256.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 6709729823 is about 81912.9405100317. The cubic root of 6709729823 is about 1886.1157616499.

The spelling of 6709729823 in words is "six billion, seven hundred nine million, seven hundred twenty-nine thousand, eight hundred twenty-three".