6729980091 has 8 divisors (see below), whose sum is σ = 9282731280. Its totient is φ = 4331941152.

The previous prime is 6729980083. The next prime is 6729980129. The reversal of 6729980091 is 1900899276.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6729980091 - 2³ = 6729980083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6729980591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38677960 + ... + 38678133.

It is an arithmetic number, because the mean of its divisors is an integer number (1160341410).

Almost surely, 2^6729980091 is an apocalyptic number.

6729980091 is a deficient number, since it is larger than the sum of its proper divisors (2552751189).

6729980091 is a wasteful number, since it uses less digits than its factorization.

6729980091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77356125.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 6729980091 is about 82036.4558656699. The cubic root of 6729980091 is about 1888.0113168542.

The spelling of 6729980091 in words is "six billion, seven hundred twenty-nine million, nine hundred eighty thousand, ninety-one".