1089849600000 has 2304 divisors, whose sum is σ = 4975106572800. Its totient is φ = 230031360000.

The previous prime is 1089849599987. The next prime is 1089849600019. The reversal of 1089849600000 is 69489801.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 20563199974 + ... + 20563200026.

It is an arithmetic number, because the mean of its divisors is an integer number (2159334450).

Almost surely, 2^{1089849600000} is an apocalyptic number.

1089849600000 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 1089849600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2487553286400).

1089849600000 is an abundant number, since it is smaller than the sum of its proper divisors (3885256972800).

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

1089849600000 is an frugal number, since it uses more digits than its factorization.

1089849600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 1089849600000 in words is "one trillion, eighty-nine billion, eight hundred forty-nine million, six hundred thousand".