6705139544 has 16 divisors (see below), whose sum is σ = 12977689920. Its totient is φ = 3244422240.

The previous prime is 6705139543. The next prime is 6705139591. The reversal of 6705139544 is 4459315076.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6705139495 and 6705139504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6705139543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13518179 + ... + 13518674.

It is an arithmetic number, because the mean of its divisors is an integer number (811105620).

Almost surely, 2^6705139544 is an apocalyptic number.

It is an amenable number.

6705139544 is a deficient number, since it is larger than the sum of its proper divisors (6272550376).

6705139544 is a wasteful number, since it uses less digits than its factorization.

6705139544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27036890 (or 27036886 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 6705139544 is about 81884.9164620689. The cubic root of 6705139544 is about 1885.6855519453.

The spelling of 6705139544 in words is "six billion, seven hundred five million, one hundred thirty-nine thousand, five hundred forty-four".