6838649421603 has 16 divisors (see below), whose sum is σ = 9143627576832. Its totient is φ = 4546395332000.

The previous prime is 6838649421587. The next prime is 6838649421641. The reversal of 6838649421603 is 3061249468386.

It is a cyclic number.

It is not a de Polignac number, because 6838649421603 - 2⁴ = 6838649421587 is a prime.

It is a super-5 number, since 5×6838649421603⁵ (a number of 65 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (6838649421403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533148 + ... + 4003478.

It is an arithmetic number, because the mean of its divisors is an integer number (571476723552).

Almost surely, 2^{6838649421603} is an apocalyptic number.

6838649421603 is a deficient number, since it is larger than the sum of its proper divisors (2304978155229).

6838649421603 is a wasteful number, since it uses less digits than its factorization.

6838649421603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472906.

The product of its (nonzero) digits is 35831808, while the sum is 60.

The spelling of 6838649421603 in words is "six trillion, eight hundred thirty-eight billion, six hundred forty-nine million, four hundred twenty-one thousand, six hundred three".