13394378752326 has 640 divisors, whose sum is σ = 38392169840640. Its totient is φ = 3427942291200.

The previous prime is 13394378752291. The next prime is 13394378752343. The reversal of 13394378752326 is 62325787349331.

It is a happy number.

13394378752326 is a `hidden beast` number, since 1 + 3 + 3 + 9 + 4 + 3 + 7 + 87 + 523 + 26 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 11284227505 + ... + 11284228691.

It is an arithmetic number, because the mean of its divisors is an integer number (59987765376).

Almost surely, 2^{13394378752326} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13394378752326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19196084920320).

13394378752326 is an abundant number, since it is smaller than the sum of its proper divisors (24997791088314).

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

13394378752326 is a wasteful number, since it uses less digits than its factorization.

13394378752326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102 (or 2093 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 63.

The spelling of 13394378752326 in words is "thirteen trillion, three hundred ninety-four billion, three hundred seventy-eight million, seven hundred fifty-two thousand, three hundred twenty-six".