1266584875 has 8 divisors (see below), whose sum is σ = 1580698080. Its totient is φ = 1013267800.

The previous prime is 1266584749. The next prime is 1266584903. The reversal of 1266584875 is 5784856621.

It is a happy number.

It is not a de Polignac number, because 1266584875 - 2¹¹ = 1266582827 is a prime.

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, 5066215 + ... + 5066464.

It is an arithmetic number, because the mean of its divisors is an integer number (197587260).

Almost surely, 2^1266584875 is an apocalyptic number.

1266584875 is a deficient number, since it is larger than the sum of its proper divisors (314113205).

1266584875 is an equidigital number, since it uses as much as digits as its factorization.

1266584875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132694 (or 10132684 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 52.

The square root of 1266584875 is about 35589.1117478366. Note that the first 3 decimals coincide. The cubic root of 1266584875 is about 1081.9605662685.

The spelling of 1266584875 in words is "one billion, two hundred sixty-six million, five hundred eighty-four thousand, eight hundred seventy-five".