1243883386368 has 960 divisors, whose sum is σ = 4412289024000. Its totient is φ = 336737157120.

The previous prime is 1243883386307. The next prime is 1243883386387. The reversal of 1243883386368 is 8636833883421.

1243883386368 is a `hidden beast` number, since 1 + 2 + 438 + 83 + 3 + 8 + 63 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2596833553 + ... + 2596834031.

It is an arithmetic number, because the mean of its divisors is an integer number (4596134400).

Almost surely, 2^{1243883386368} is an apocalyptic number.

1243883386368 is a gapful number since it is divisible by the number (18) 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 1243883386368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2206144512000).

1243883386368 is an abundant number, since it is smaller than the sum of its proper divisors (3168405637632).

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

1243883386368 is an equidigital number, since it uses as much as digits as its factorization.

1243883386368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 575 counting only the distinct ones).

The product of its digits is 95551488, while the sum is 63.

The spelling of 1243883386368 in words is "one trillion, two hundred forty-three billion, eight hundred eighty-three million, three hundred eighty-six thousand, three hundred sixty-eight".