2628464408686 has 16 divisors (see below), whose sum is σ = 3981803349888. Its totient is φ = 1301197084000.

The previous prime is 2628464408651. The next prime is 2628464408711. The reversal of 2628464408686 is 6868044648262.

It is a happy number.

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, 20860956 + ... + 20986576.

It is an arithmetic number, because the mean of its divisors is an integer number (248862709368).

Almost surely, 2^{2628464408686} is an apocalyptic number.

2628464408686 is a deficient number, since it is larger than the sum of its proper divisors (1353338941202).

2628464408686 is a wasteful number, since it uses less digits than its factorization.

2628464408686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229307.

The product of its (nonzero) digits is 169869312, while the sum is 64.

The spelling of 2628464408686 in words is "two trillion, six hundred twenty-eight billion, four hundred sixty-four million, four hundred eight thousand, six hundred eighty-six".