8627778777268 has 48 divisors (see below), whose sum is σ = 18226425462784. Its totient is φ = 3495124170720.

The previous prime is 8627778777197. The next prime is 8627778777287.

It is a happy number.

8627778777268 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8627778777268² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8627778777191 and 8627778777200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115542180 + ... + 115616827.

Almost surely, 2^{8627778777268} is an apocalyptic number.

It is an amenable number.

8627778777268 is an abundant number, since it is smaller than the sum of its proper divisors (9598646685516).

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

8627778777268 is a wasteful number, since it uses less digits than its factorization.

8627778777268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231159092 (or 231159090 counting only the distinct ones).

The product of its digits is 8674025472, while the sum is 82.

The spelling of 8627778777268 in words is "eight trillion, six hundred twenty-seven billion, seven hundred seventy-eight million, seven hundred seventy-seven thousand, two hundred sixty-eight".