1266867488 has 24 divisors (see below), whose sum is σ = 2508090480. Its totient is φ = 629892160.

The previous prime is 1266867479. The next prime is 1266867499. The reversal of 1266867488 is 8847686621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104858 + ... + 116313.

It is an arithmetic number, because the mean of its divisors is an integer number (104503770).

Almost surely, 2^1266867488 is an apocalyptic number.

It is an amenable number.

1266867488 is a deficient number, since it is larger than the sum of its proper divisors (1241222992).

1266867488 is a wasteful number, since it uses less digits than its factorization.

1266867488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221360 (or 221352 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The square root of 1266867488 is about 35593.0820244609. The cubic root of 1266867488 is about 1082.0410328807.

The spelling of 1266867488 in words is "one billion, two hundred sixty-six million, eight hundred sixty-seven thousand, four hundred eighty-eight".