1276674371280 has 480 divisors, whose sum is σ = 5577868707840. Its totient is φ = 253748689920.

The previous prime is 1276674371267. The next prime is 1276674371351. The reversal of 1276674371280 is 821734766721.

1276674371280 is a `hidden beast` number, since 1 + 2 + 76 + 67 + 437 + 1 + 2 + 80 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 774511 + ... + 1775729.

It is an arithmetic number, because the mean of its divisors is an integer number (11620559808).

Almost surely, 2^{1276674371280} is an apocalyptic number.

1276674371280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276674371280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788934353920).

1276674371280 is an abundant number, since it is smaller than the sum of its proper divisors (4301194336560).

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

1276674371280 is a wasteful number, since it uses less digits than its factorization.

1276674371280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001279 (or 1001270 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 1276674371280 in words is "one trillion, two hundred seventy-six billion, six hundred seventy-four million, three hundred seventy-one thousand, two hundred eighty".