6840128335 has 8 divisors (see below), whose sum is σ = 8223163056. Its totient is φ = 5462096640.

The previous prime is 6840128333. The next prime is 6840128353. The reversal of 6840128335 is 5338210486.

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

It is not a de Polignac number, because 6840128335 - 2¹ = 6840128333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840128333) 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, 1247746 + ... + 1253215.

It is an arithmetic number, because the mean of its divisors is an integer number (1027895382).

Almost surely, 2^6840128335 is an apocalyptic number.

6840128335 is a deficient number, since it is larger than the sum of its proper divisors (1383034721).

6840128335 is a wasteful number, since it uses less digits than its factorization.

6840128335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501513.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 6840128335 is about 82705.0683755234. The cubic root of 6840128335 is about 1898.2558634197.

The spelling of 6840128335 in words is "six billion, eight hundred forty million, one hundred twenty-eight thousand, three hundred thirty-five".