11911920673 has 8 divisors (see below), whose sum is σ = 12192568256. Its totient is φ = 11631438000.

The previous prime is 11911920653. The next prime is 11911920679. The reversal of 11911920673 is 37602911911.

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 11911920673 - 2⁵ = 11911920641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11911920679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111523 + ... + 190423.

It is an arithmetic number, because the mean of its divisors is an integer number (1524071032).

Almost surely, 2^11911920673 is an apocalyptic number.

It is an amenable number.

11911920673 is a deficient number, since it is larger than the sum of its proper divisors (280647583).

11911920673 is an equidigital number, since it uses as much as digits as its factorization.

11911920673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82455.

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 11911920673 in words is "eleven billion, nine hundred eleven million, nine hundred twenty thousand, six hundred seventy-three".