1276828473168 has 60 divisors (see below), whose sum is σ = 3573538445568. Its totient is φ = 425586611520.

The previous prime is 1276828473157. The next prime is 1276828473181. The reversal of 1276828473168 is 8613748286721.

It is a happy number.

1276828473168 is a `hidden beast` number, since 1 + 2 + 76 + 82 + 8 + 473 + 16 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2563671 + ... + 3020937.

Almost surely, 2^{1276828473168} is an apocalyptic number.

1276828473168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1276828473168 is an abundant number, since it is smaller than the sum of its proper divisors (2296709972400).

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

1276828473168 is a wasteful number, since it uses less digits than its factorization.

1276828473168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476672 (or 476663 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 1276828473168 in words is "one trillion, two hundred seventy-six billion, eight hundred twenty-eight million, four hundred seventy-three thousand, one hundred sixty-eight".