276129668 has 24 divisors (see below), whose sum is σ = 497109312. Its totient is φ = 134110944.

The previous prime is 276129649. The next prime is 276129671. The reversal of 276129668 is 866921672.

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 7 ways as a sum of consecutive naturals, for example, 120671 + ... + 122937.

It is an arithmetic number, because the mean of its divisors is an integer number (20712888).

Almost surely, 2^276129668 is an apocalyptic number.

It is an amenable number.

276129668 is a deficient number, since it is larger than the sum of its proper divisors (220979644).

276129668 is a wasteful number, since it uses less digits than its factorization.

276129668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3129 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 276129668 is about 16617.1498157777. The cubic root of 276129668 is about 651.1849533043.

The spelling of 276129668 in words is "two hundred seventy-six million, one hundred twenty-nine thousand, six hundred sixty-eight".