6839905637746 has 4 divisors (see below), whose sum is σ = 10259858456622. Its totient is φ = 3419952818872.

The previous prime is 6839905637737. The next prime is 6839905637779. The reversal of 6839905637746 is 6477365099386.

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

It can be written as a sum of positive squares in only one way, i.e., 4270376787121 + 2569528850625 = 2066489^2 + 1602975^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1709976409435 + ... + 1709976409438.

Almost surely, 2^{6839905637746} is an apocalyptic number.

6839905637746 is a deficient number, since it is larger than the sum of its proper divisors (3419952818876).

6839905637746 is a wasteful number, since it uses less digits than its factorization.

6839905637746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419952818875.

The product of its (nonzero) digits is 1234517760, while the sum is 73.

The spelling of 6839905637746 in words is "six trillion, eight hundred thirty-nine billion, nine hundred five million, six hundred thirty-seven thousand, seven hundred forty-six".