1299896380800 has 384 divisors, whose sum is σ = 4760181043200. Its totient is φ = 346426214400.

The previous prime is 1299896380729. The next prime is 1299896380817. The reversal of 1299896380800 is 80836989921.

1299896380800 is a `hidden beast` number, since 1 + 2 + 9 + 98 + 96 + 380 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182386837 + ... + 182393963.

It is an arithmetic number, because the mean of its divisors is an integer number (12396304800).

Almost surely, 2^{1299896380800} is an apocalyptic number.

1299896380800 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 1299896380800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380090521600).

1299896380800 is an abundant number, since it is smaller than the sum of its proper divisors (3460284662400).

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

1299896380800 is a wasteful number, since it uses less digits than its factorization.

1299896380800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9271 (or 9248 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 1299896380800 in words is "one trillion, two hundred ninety-nine billion, eight hundred ninety-six million, three hundred eighty thousand, eight hundred".