6729005617845 has 32 divisors (see below), whose sum is σ = 12312360253440. Its totient is φ = 3074143644480.

The previous prime is 6729005617837. The next prime is 6729005617853. The reversal of 6729005617845 is 5487165009276.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6729005617837) and next prime (6729005617853).

It is not a de Polignac number, because 6729005617845 - 2³ = 6729005617837 is a prime.

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, 20389791 + ... + 20717180.

It is an arithmetic number, because the mean of its divisors is an integer number (384761257920).

Almost surely, 2^{6729005617845} is an apocalyptic number.

It is an amenable number.

6729005617845 is a deficient number, since it is larger than the sum of its proper divisors (5583354635595).

6729005617845 is a wasteful number, since it uses less digits than its factorization.

6729005617845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41108545.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 6729005617845 in words is "six trillion, seven hundred twenty-nine billion, five million, six hundred seventeen thousand, eight hundred forty-five".