6138481893 has 4 divisors (see below), whose sum is σ = 8184642528. Its totient is φ = 4092321260.

The previous prime is 6138481871. The next prime is 6138481897. The reversal of 6138481893 is 3981848316.

6138481893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6138481893 - 2¹⁰ = 6138480869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6138481897) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1023080313 + ... + 1023080318.

It is an arithmetic number, because the mean of its divisors is an integer number (2046160632).

Almost surely, 2^6138481893 is an apocalyptic number.

It is an amenable number.

6138481893 is a deficient number, since it is larger than the sum of its proper divisors (2046160635).

6138481893 is a wasteful number, since it uses less digits than its factorization.

6138481893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046160634.

The product of its digits is 995328, while the sum is 51.

The square root of 6138481893 is about 78348.4645222866. The cubic root of 6138481893 is about 1830.9943030439.

The spelling of 6138481893 in words is "six billion, one hundred thirty-eight million, four hundred eighty-one thousand, eight hundred ninety-three".