6861208029 has 16 divisors (see below), whose sum is σ = 9853607232. Its totient is φ = 4221589248.

The previous prime is 6861208019. The next prime is 6861208061. The reversal of 6861208029 is 9208021686.

It is a de Polignac number, because none of the positive numbers 2^k-6861208029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6861208019) 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, 331077 + ... + 351189.

It is an arithmetic number, because the mean of its divisors is an integer number (615850452).

Almost surely, 2^6861208029 is an apocalyptic number.

It is an amenable number.

6861208029 is a deficient number, since it is larger than the sum of its proper divisors (2992399203).

6861208029 is a wasteful number, since it uses less digits than its factorization.

6861208029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28876.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 6861208029 is about 82832.4092912913. The cubic root of 6861208029 is about 1900.2038589204.

The spelling of 6861208029 in words is "six billion, eight hundred sixty-one million, two hundred eight thousand, twenty-nine".