11890838050561 has 8 divisors (see below), whose sum is σ = 11975538256704. Its totient is φ = 11806383709680.

The previous prime is 11890838050543. The next prime is 11890838050577. The reversal of 11890838050561 is 16505083809811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11890838050561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11890838060561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61369245 + ... + 61562698.

It is an arithmetic number, because the mean of its divisors is an integer number (1496942282088).

Almost surely, 2^{11890838050561} is an apocalyptic number.

It is an amenable number.

11890838050561 is a deficient number, since it is larger than the sum of its proper divisors (84700206143).

11890838050561 is a wasteful number, since it uses less digits than its factorization.

11890838050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122932631.

The product of its (nonzero) digits is 2073600, while the sum is 55.

The spelling of 11890838050561 in words is "eleven trillion, eight hundred ninety billion, eight hundred thirty-eight million, fifty thousand, five hundred sixty-one".