6348838865 has 8 divisors (see below), whose sum is σ = 7631457768. Its totient is φ = 5070503680.

The previous prime is 6348838829. The next prime is 6348838877. The reversal of 6348838865 is 5688388436.

It can be written as a sum of positive squares in 4 ways, for example, as 1268570689 + 5080268176 = 35617^2 + 71276^2 .

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

It is not a de Polignac number, because 6348838865 - 2⁶ = 6348838801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067666 + ... + 1073595.

It is an arithmetic number, because the mean of its divisors is an integer number (953932221).

Almost surely, 2^6348838865 is an apocalyptic number.

It is an amenable number.

6348838865 is a deficient number, since it is larger than the sum of its proper divisors (1282618903).

6348838865 is a wasteful number, since it uses less digits than its factorization.

6348838865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141859.

The product of its digits is 26542080, while the sum is 59.

The square root of 6348838865 is about 79679.6013104985. The cubic root of 6348838865 is about 1851.6750220280.

The spelling of 6348838865 in words is "six billion, three hundred forty-eight million, eight hundred thirty-eight thousand, eight hundred sixty-five".