1276856368 has 20 divisors (see below), whose sum is σ = 2484719440. Its totient is φ = 635638464.

The previous prime is 1276856333. The next prime is 1276856387. The reversal of 1276856368 is 8636586721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170580 + ... + 177907.

It is an arithmetic number, because the mean of its divisors is an integer number (124235972).

Almost surely, 2^1276856368 is an apocalyptic number.

It is an amenable number.

1276856368 is a deficient number, since it is larger than the sum of its proper divisors (1207863072).

1276856368 is a wasteful number, since it uses less digits than its factorization.

1276856368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348724 (or 348718 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 1276856368 is about 35733.1270392055. The cubic root of 1276856368 is about 1084.8774502515.

The spelling of 1276856368 in words is "one billion, two hundred seventy-six million, eight hundred fifty-six thousand, three hundred sixty-eight".