6864479740 has 12 divisors (see below), whose sum is σ = 14415407496. Its totient is φ = 2745791888.

The previous prime is 6864479729. The next prime is 6864479753. The reversal of 6864479740 is 479744686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171611974 + ... + 171612013.

It is an arithmetic number, because the mean of its divisors is an integer number (1201283958).

Almost surely, 2^6864479740 is an apocalyptic number.

It is an amenable number.

6864479740 is an abundant number, since it is smaller than the sum of its proper divisors (7550927756).

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

6864479740 is a wasteful number, since it uses less digits than its factorization.

6864479740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343223996 (or 343223994 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The square root of 6864479740 is about 82852.1559164274. The cubic root of 6864479740 is about 1900.5058431551.

The spelling of 6864479740 in words is "six billion, eight hundred sixty-four million, four hundred seventy-nine thousand, seven hundred forty".