1281460680612 has 216 divisors, whose sum is σ = 3990979714176. Its totient is φ = 344488951296.

The previous prime is 1281460680587. The next prime is 1281460680631. The reversal of 1281460680612 is 2160860641821.

It is a happy number.

1281460680612 is a `hidden beast` number, since 1 + 28 + 1 + 4 + 6 + 0 + 6 + 8 + 0 + 612 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 187811433 + ... + 187818255.

It is an arithmetic number, because the mean of its divisors is an integer number (18476757936).

Almost surely, 2^{1281460680612} is an apocalyptic number.

1281460680612 is a gapful number since it is divisible by the number (12) 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 1281460680612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1995489857088).

1281460680612 is an abundant number, since it is smaller than the sum of its proper divisors (2709519033564).

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

1281460680612 is a wasteful number, since it uses less digits than its factorization.

1281460680612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13127 (or 13115 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 1281460680612 in words is "one trillion, two hundred eighty-one billion, four hundred sixty million, six hundred eighty thousand, six hundred twelve".