6840818345 has 8 divisors (see below), whose sum is σ = 8221673664. Its totient is φ = 5464193584.

The previous prime is 6840818333. The next prime is 6840818351. The reversal of 6840818345 is 5438180486.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6840818345 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6840818345.

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, 1054079 + ... + 1060548.

It is an arithmetic number, because the mean of its divisors is an integer number (1027709208).

Almost surely, 2^6840818345 is an apocalyptic number.

It is an amenable number.

6840818345 is a deficient number, since it is larger than the sum of its proper divisors (1380855319).

6840818345 is a wasteful number, since it uses less digits than its factorization.

6840818345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115279.

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 6840818345 is about 82709.2397800874. The cubic root of 6840818345 is about 1898.3196912420.

The spelling of 6840818345 in words is "six billion, eight hundred forty million, eight hundred eighteen thousand, three hundred forty-five".