6838129845547 has 32 divisors (see below), whose sum is σ = 9721339697664. Its totient is φ = 4629209356800.

The previous prime is 6838129845527. The next prime is 6838129845577. The reversal of 6838129845547 is 7455489218386.

It is not a de Polignac number, because 6838129845547 - 2¹⁹ = 6838129321259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6838129845527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200903529 + ... + 200937562.

It is an arithmetic number, because the mean of its divisors is an integer number (303791865552).

Almost surely, 2^{6838129845547} is an apocalyptic number.

6838129845547 is a deficient number, since it is larger than the sum of its proper divisors (2883209852117).

6838129845547 is a wasteful number, since it uses less digits than its factorization.

6838129845547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401841139.

The product of its digits is 464486400, while the sum is 70.

The spelling of 6838129845547 in words is "six trillion, eight hundred thirty-eight billion, one hundred twenty-nine million, eight hundred forty-five thousand, five hundred forty-seven".