6860643408 has 40 divisors (see below), whose sum is σ = 19692588800. Its totient is φ = 2286880992.

The previous prime is 6860643379. The next prime is 6860643469. The reversal of 6860643408 is 8043460686.

6860643408 is a `hidden beast` number, since 6 + 8 + 606 + 4 + 34 + 0 + 8 = 666.

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, 7940128 + ... + 7940991.

It is an arithmetic number, because the mean of its divisors is an integer number (492314720).

Almost surely, 2^6860643408 is an apocalyptic number.

It is an amenable number.

6860643408 is an abundant number, since it is smaller than the sum of its proper divisors (12831945392).

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

6860643408 is a wasteful number, since it uses less digits than its factorization.

6860643408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15881136 (or 15881124 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 6860643408 is about 82829.0010081010. The cubic root of 6860643408 is about 1900.1517337733.

The spelling of 6860643408 in words is "six billion, eight hundred sixty million, six hundred forty-three thousand, four hundred eight".