13440356611326 has 48 divisors (see below), whose sum is σ = 29833370264880. Its totient is φ = 4370505575040.

The previous prime is 13440356611261. The next prime is 13440356611343. The reversal of 13440356611326 is 62311665304431.

13440356611326 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 0 + 3 + 5 + 6 + 611 + 3 + 26 = 666.

It is a super-2 number, since 2×13440356611326² (a number of 27 digits) contains 22 as substring.

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, 8808765 + ... + 10221303.

It is an arithmetic number, because the mean of its divisors is an integer number (621528547185).

Almost surely, 2^{13440356611326} is an apocalyptic number.

13440356611326 is an abundant number, since it is smaller than the sum of its proper divisors (16393013653554).

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

13440356611326 is a wasteful number, since it uses less digits than its factorization.

13440356611326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425481 (or 1425478 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 13440356611326 in words is "thirteen trillion, four hundred forty billion, three hundred fifty-six million, six hundred eleven thousand, three hundred twenty-six".