6389886245 has 8 divisors (see below), whose sum is σ = 7932272760. Its totient is φ = 4935636160.

The previous prime is 6389886233. The next prime is 6389886247. The reversal of 6389886245 is 5426889836.

It can be written as a sum of positive squares in 4 ways, for example, as 1274632804 + 5115253441 = 35702^2 + 71521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6389886245 - 2⁴ = 6389886229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389886247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22033946 + ... + 22034235.

It is an arithmetic number, because the mean of its divisors is an integer number (991534095).

Almost surely, 2^6389886245 is an apocalyptic number.

It is an amenable number.

6389886245 is a deficient number, since it is larger than the sum of its proper divisors (1542386515).

6389886245 is a wasteful number, since it uses less digits than its factorization.

6389886245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44068215.

The product of its digits is 19906560, while the sum is 59.

The square root of 6389886245 is about 79936.7640388326. The cubic root of 6389886245 is about 1855.6570200684.

The spelling of 6389886245 in words is "six billion, three hundred eighty-nine million, eight hundred eighty-six thousand, two hundred forty-five".