1243089244544 has 192 divisors, whose sum is σ = 2945390772240. Its totient is φ = 520875823104.

The previous prime is 1243089244517. The next prime is 1243089244559. The reversal of 1243089244544 is 4454429803421.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1243089244492 and 1243089244501.

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, 97391507 + ... + 97404269.

Almost surely, 2^{1243089244544} is an apocalyptic number.

1243089244544 is a gapful number since it is divisible by the number (14) 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 1243089244544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1472695386120).

1243089244544 is an abundant number, since it is smaller than the sum of its proper divisors (1702301527696).

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

1243089244544 is a wasteful number, since it uses less digits than its factorization.

1243089244544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13137 (or 13118 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 50.

The spelling of 1243089244544 in words is "one trillion, two hundred forty-three billion, eighty-nine million, two hundred forty-four thousand, five hundred forty-four".