6840612845 has 16 divisors (see below), whose sum is σ = 9426300480. Its totient is φ = 4713148800.

The previous prime is 6840612839. The next prime is 6840612899. The reversal of 6840612845 is 5482160486.

It is a happy number.

It is not a de Polignac number, because 6840612845 - 2²² = 6836418541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6840612796 and 6840612805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3271976 + ... + 3274065.

It is an arithmetic number, because the mean of its divisors is an integer number (589143780).

Almost surely, 2^6840612845 is an apocalyptic number.

It is an amenable number.

6840612845 is a deficient number, since it is larger than the sum of its proper divisors (2585687635).

6840612845 is a wasteful number, since it uses less digits than its factorization.

6840612845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6546076.

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 6840612845 is about 82707.9974669923. The cubic root of 6840612845 is about 1898.3006823757.

The spelling of 6840612845 in words is "six billion, eight hundred forty million, six hundred twelve thousand, eight hundred forty-five".