6849620129 has 8 divisors (see below), whose sum is σ = 7500727872. Its totient is φ = 6203248240.

The previous prime is 6849620077. The next prime is 6849620131. The reversal of 6849620129 is 9210269486.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6849620129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6849620329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180934 + ... + 1186719.

It is an arithmetic number, because the mean of its divisors is an integer number (937590984).

Almost surely, 2^6849620129 is an apocalyptic number.

It is an amenable number.

6849620129 is a deficient number, since it is larger than the sum of its proper divisors (651107743).

6849620129 is a wasteful number, since it uses less digits than its factorization.

6849620129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367927.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 6849620129 is about 82762.4318697801. The cubic root of 6849620129 is about 1899.1335041556.

The spelling of 6849620129 in words is "six billion, eight hundred forty-nine million, six hundred twenty thousand, one hundred twenty-nine".