11890684789 has 8 divisors (see below), whose sum is σ = 12090011072. Its totient is φ = 11692343520.

The previous prime is 11890684669. The next prime is 11890684843. The reversal of 11890684789 is 98748609811.

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-11890684789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11890682789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221889 + ... + 270214.

It is an arithmetic number, because the mean of its divisors is an integer number (1511251384).

Almost surely, 2^11890684789 is an apocalyptic number.

It is an amenable number.

11890684789 is a deficient number, since it is larger than the sum of its proper divisors (199326283).

11890684789 is an equidigital number, since it uses as much as digits as its factorization.

11890684789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492507.

The product of its (nonzero) digits is 6967296, while the sum is 61.

The spelling of 11890684789 in words is "eleven billion, eight hundred ninety million, six hundred eighty-four thousand, seven hundred eighty-nine".