1394289089280 has 288 divisors, whose sum is σ = 4965432131520. Its totient is φ = 370484674560.

The previous prime is 1394289089269. The next prime is 1394289089299. The reversal of 1394289089280 is 829809824931.

It is a happy number.

1394289089280 is a `hidden beast` number, since 1 + 39 + 428 + 90 + 8 + 92 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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, 9639574 + ... + 9783146.

It is an arithmetic number, because the mean of its divisors is an integer number (17241083790).

Almost surely, 2^{1394289089280} is an apocalyptic number.

1394289089280 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 1394289089280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2482716065760).

1394289089280 is an abundant number, since it is smaller than the sum of its proper divisors (3571143042240).

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

1394289089280 is a wasteful number, since it uses less digits than its factorization.

1394289089280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143884 (or 143864 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 1394289089280 in words is "one trillion, three hundred ninety-four billion, two hundred eighty-nine million, eighty-nine thousand, two hundred eighty".