9278670380281 has 27 divisors (see below), whose sum is σ = 9697070779533. Its totient is φ = 8878014984960.

The previous prime is 9278670380261. The next prime is 9278670380333. The reversal of 9278670380281 is 1820830768729.

The square root of 9278670380281 is 3046091.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4700696635881 + 4577973744400 = 2168109^2 + 2139620^2 .

It is not a de Polignac number, because 9278670380281 - 2¹⁷ = 9278670249209 is a prime.

It is a super-2 number, since 2×9278670380281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9278670380261) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 9159595131 + ... + 9159596143.

Almost surely, 2^{9278670380281} is an apocalyptic number.

9278670380281 is the 3046091-st square number.

9278670380281 is the 1523046-th centered octagonal number.

It is an amenable number.

9278670380281 is a deficient number, since it is larger than the sum of its proper divisors (418400399252).

9278670380281 is an frugal number, since it uses more digits than its factorization.

9278670380281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 9278670380281 in words is "nine trillion, two hundred seventy-eight billion, six hundred seventy million, three hundred eighty thousand, two hundred eighty-one".