1326444007000 has 128 divisors (see below), whose sum is σ = 3575224074240. Its totient is φ = 451199548800.

The previous prime is 1326444006991. The next prime is 1326444007039. The reversal of 1326444007000 is 7004446231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142969 + ... + 1635031.

It is an arithmetic number, because the mean of its divisors is an integer number (27931438080).

Almost surely, 2^{1326444007000} is an apocalyptic number.

1326444007000 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 1326444007000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787612037120).

1326444007000 is an abundant number, since it is smaller than the sum of its proper divisors (2248780067240).

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

1326444007000 is a wasteful number, since it uses less digits than its factorization.

1326444007000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492218 (or 1492204 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 1326444007000 in words is "one trillion, three hundred twenty-six billion, four hundred forty-four million, seven thousand".