11891446920001 has 8 divisors (see below), whose sum is σ = 12989269560384. Its totient is φ = 10796421281520.

The previous prime is 11891446919953. The next prime is 11891446920019. The reversal of 11891446920001 is 10002964419811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11891446920001 - 2⁷ = 11891446919873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11891446920071) 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, 699241581 + ... + 699258586.

It is an arithmetic number, because the mean of its divisors is an integer number (1623658695048).

Almost surely, 2^{11891446920001} is an apocalyptic number.

11891446920001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11891446920001 is a deficient number, since it is larger than the sum of its proper divisors (1097822640383).

11891446920001 is a wasteful number, since it uses less digits than its factorization.

11891446920001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398500951.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 11891446920001 in words is "eleven trillion, eight hundred ninety-one billion, four hundred forty-six million, nine hundred twenty thousand, one".