9278287268 has 12 divisors (see below), whose sum is σ = 17192120652. Its totient is φ = 4366252800.

The previous prime is 9278287267. The next prime is 9278287279. The reversal of 9278287268 is 8627828729.

It can be written as a sum of positive squares in 2 ways, for example, as 6168217444 + 3110069824 = 78538^2 + 55768^2 .

It is a super-2 number, since 2×9278287268² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9278287267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68222633 + ... + 68222768.

It is an arithmetic number, because the mean of its divisors is an integer number (1432676721).

Almost surely, 2^9278287268 is an apocalyptic number.

It is an amenable number.

9278287268 is a deficient number, since it is larger than the sum of its proper divisors (7913833384).

9278287268 is a wasteful number, since it uses less digits than its factorization.

9278287268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136445422 (or 136445420 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 59.

The square root of 9278287268 is about 96323.8665544526. The cubic root of 9278287268 is about 2101.3058596052.

The spelling of 9278287268 in words is "nine billion, two hundred seventy-eight million, two hundred eighty-seven thousand, two hundred sixty-eight".