6729873639999 has 16 divisors (see below), whose sum is σ = 9096351400032. Its totient is φ = 4424992754688.

The previous prime is 6729873639967. The next prime is 6729873640069. The reversal of 6729873639999 is 9999363789276.

It is a Cunningham number, because it is equal to 2594200²-1.

It is not a de Polignac number, because 6729873639999 - 2⁵ = 6729873639967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6729873635999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7350237 + ... + 8214969.

It is an arithmetic number, because the mean of its divisors is an integer number (568521962502).

Almost surely, 2^{6729873639999} is an apocalyptic number.

6729873639999 is a deficient number, since it is larger than the sum of its proper divisors (2366477760033).

6729873639999 is a wasteful number, since it uses less digits than its factorization.

6729873639999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900346.

The product of its digits is 14999390784, while the sum is 87.

The spelling of 6729873639999 in words is "six trillion, seven hundred twenty-nine billion, eight hundred seventy-three million, six hundred thirty-nine thousand, nine hundred ninety-nine".