1268708281600 has 216 divisors, whose sum is σ = 3263093926400. Its totient is φ = 487848960000.

The previous prime is 1268708281597. The next prime is 1268708281613. The reversal of 1268708281600 is 61828078621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29937226 + ... + 29979574.

Almost surely, 2^{1268708281600} is an apocalyptic number.

1268708281600 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 1268708281600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1631546963200).

1268708281600 is an abundant number, since it is smaller than the sum of its proper divisors (1994385644800).

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

1268708281600 is a wasteful number, since it uses less digits than its factorization.

1268708281600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42557 (or 42538 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 1268708281600 in words is "one trillion, two hundred sixty-eight billion, seven hundred eight million, two hundred eighty-one thousand, six hundred".