1276678016 has 32 divisors (see below), whose sum is σ = 2556609600. Its totient is φ = 635019264.

The previous prime is 1276678009. The next prime is 1276678031. The reversal of 1276678016 is 6108766721.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 1136 + ... + 50543.

It is an arithmetic number, because the mean of its divisors is an integer number (79894050).

Almost surely, 2^1276678016 is an apocalyptic number.

1276678016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1276678016 is an abundant number, since it is smaller than the sum of its proper divisors (1279931584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276678016 is an equidigital number, since it uses as much as digits as its factorization.

1276678016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51886 (or 51874 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1276678016 is about 35730.6313406298. The cubic root of 1276678016 is about 1084.8269358064.

The spelling of 1276678016 in words is "one billion, two hundred seventy-six million, six hundred seventy-eight thousand, sixteen".