11547964643408 has 40 divisors (see below), whose sum is σ = 22394531587560. Its totient is φ = 5768732344320.

The previous prime is 11547964643393. The next prime is 11547964643419. The reversal of 11547964643408 is 80434646974511.

It can be written as a sum of positive squares in 4 ways, for example, as 1900405616704 + 9647559026704 = 1378552^2 + 3106052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119006366 + ... + 119103362.

It is an arithmetic number, because the mean of its divisors is an integer number (559863289689).

Almost surely, 2^{11547964643408} is an apocalyptic number.

It is an amenable number.

11547964643408 is a deficient number, since it is larger than the sum of its proper divisors (10846566944152).

11547964643408 is a wasteful number, since it uses less digits than its factorization.

11547964643408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103695 (or 103689 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 11547964643408 in words is "eleven trillion, five hundred forty-seven billion, nine hundred sixty-four million, six hundred forty-three thousand, four hundred eight".