1299679180800 has 2304 divisors, whose sum is σ = 5896422604800. Its totient is φ = 243833241600.

The previous prime is 1299679180783. The next prime is 1299679180829. The reversal of 1299679180800 is 80819769921.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12146534347 + ... + 12146534453.

It is an arithmetic number, because the mean of its divisors is an integer number (2559211200).

Almost surely, 2^{1299679180800} is an apocalyptic number.

1299679180800 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 1299679180800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2948211302400).

1299679180800 is an abundant number, since it is smaller than the sum of its proper divisors (4596743424000).

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

1299679180800 is a wasteful number, since it uses less digits than its factorization.

1299679180800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 60.

The spelling of 1299679180800 in words is "one trillion, two hundred ninety-nine billion, six hundred seventy-nine million, one hundred eighty thousand, eight hundred".