6861838479 has 4 divisors (see below), whose sum is σ = 9149117976. Its totient is φ = 4574558984.

The previous prime is 6861838439. The next prime is 6861838483. The reversal of 6861838479 is 9748381686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6861838479 - 2²⁴ = 6845061263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6861838409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143639744 + ... + 1143639749.

It is an arithmetic number, because the mean of its divisors is an integer number (2287279494).

Almost surely, 2^6861838479 is an apocalyptic number.

6861838479 is a deficient number, since it is larger than the sum of its proper divisors (2287279497).

6861838479 is a wasteful number, since it uses less digits than its factorization.

6861838479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287279496.

The product of its digits is 13934592, while the sum is 60.

The square root of 6861838479 is about 82836.2147795274. The cubic root of 6861838479 is about 1900.2620579444.

The spelling of 6861838479 in words is "six billion, eight hundred sixty-one million, eight hundred thirty-eight thousand, four hundred seventy-nine".