6865715420 has 24 divisors (see below), whose sum is σ = 14443276848. Its totient is φ = 2741472000.

The previous prime is 6865715419. The next prime is 6865715459. The reversal of 6865715420 is 245175686.

It is a congruent 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, 289181 + ... + 312020.

It is an arithmetic number, because the mean of its divisors is an integer number (601803202).

Almost surely, 2^6865715420 is an apocalyptic number.

It is an amenable number.

6865715420 is an abundant number, since it is smaller than the sum of its proper divisors (7577561428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6865715420 is a wasteful number, since it uses less digits than its factorization.

6865715420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601781 (or 601779 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 6865715420 is about 82859.6127193460. The cubic root of 6865715420 is about 1900.6198734604.

The spelling of 6865715420 in words is "six billion, eight hundred sixty-five million, seven hundred fifteen thousand, four hundred twenty".