11814069485921 has 16 divisors (see below), whose sum is σ = 12018631450320. Its totient is φ = 11609862328320.

The previous prime is 11814069485899. The next prime is 11814069485929. The reversal of 11814069485921 is 12958496041811.

It is a happy number.

11814069485921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1110833789521 + 10703235696400 = 1053961^2 + 3271580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11814069485921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11814069485929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534344615 + ... + 534366723.

It is an arithmetic number, because the mean of its divisors is an integer number (751164465645).

Almost surely, 2^{11814069485921} is an apocalyptic number.

It is an amenable number.

11814069485921 is a deficient number, since it is larger than the sum of its proper divisors (204561964399).

11814069485921 is a wasteful number, since it uses less digits than its factorization.

11814069485921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29716.

The product of its (nonzero) digits is 4976640, while the sum is 59.

The spelling of 11814069485921 in words is "eleven trillion, eight hundred fourteen billion, sixty-nine million, four hundred eighty-five thousand, nine hundred twenty-one".