678729279862 has 16 divisors (see below), whose sum is σ = 1032559853472. Its totient is φ = 334543834240.

The previous prime is 678729279859. The next prime is 678729279989. The reversal of 678729279862 is 268972927876.

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, 885888 + ... + 1463644.

It is an arithmetic number, because the mean of its divisors is an integer number (64534990842).

Almost surely, 2^678729279862 is an apocalyptic number.

678729279862 is a deficient number, since it is larger than the sum of its proper divisors (353830573610).

678729279862 is a wasteful number, since it uses less digits than its factorization.

678729279862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586103.

The product of its digits is 512096256, while the sum is 73.

The spelling of 678729279862 in words is "six hundred seventy-eight billion, seven hundred twenty-nine million, two hundred seventy-nine thousand, eight hundred sixty-two".