6839611305977 has 4 divisors (see below), whose sum is σ = 7024465665636. Its totient is φ = 6654756946320.

The previous prime is 6839611305973. The next prime is 6839611306009. The reversal of 6839611305977 is 7795031169386.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4910904195136 + 1928707110841 = 2216056^2 + 1388779^2 .

It is a cyclic number.

It is not a de Polignac number, because 6839611305977 - 2² = 6839611305973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6839611305973) 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, 92427179774 + ... + 92427179847.

It is an arithmetic number, because the mean of its divisors is an integer number (1756116416409).

Almost surely, 2^{6839611305977} is an apocalyptic number.

It is an amenable number.

6839611305977 is a deficient number, since it is larger than the sum of its proper divisors (184854359659).

6839611305977 is a wasteful number, since it uses less digits than its factorization.

6839611305977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184854359658.

The product of its (nonzero) digits is 51438240, while the sum is 65.

The spelling of 6839611305977 in words is "six trillion, eight hundred thirty-nine billion, six hundred eleven million, three hundred five thousand, nine hundred seventy-seven".