626686983268 has 6 divisors (see below), whose sum is σ = 1096702220726. Its totient is φ = 313343491632.

The previous prime is 626686983257. The next prime is 626686983311. The reversal of 626686983268 is 862389686626.

626686983268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 581287306084 + 45399677184 = 762422^2 + 213072^2 .

It is a junction number, because it is equal to n+sod(n) for n = 626686983197 and 626686983206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78335872905 + ... + 78335872912.

Almost surely, 2^626686983268 is an apocalyptic number.

It is an amenable number.

626686983268 is a deficient number, since it is larger than the sum of its proper divisors (470015237458).

626686983268 is a wasteful number, since it uses less digits than its factorization.

626686983268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156671745821 (or 156671745819 counting only the distinct ones).

The product of its digits is 429981696, while the sum is 70.

The spelling of 626686983268 in words is "six hundred twenty-six billion, six hundred eighty-six million, nine hundred eighty-three thousand, two hundred sixty-eight".