11992869789 has 8 divisors (see below), whose sum is σ = 16215711552. Its totient is φ = 7882637280.

The previous prime is 11992869773. The next prime is 11992869799. The reversal of 11992869789 is 98796829911.

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

It is not a de Polignac number, because 11992869789 - 2⁴ = 11992869773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11992869709) 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, 28152064 + ... + 28152489.

It is an arithmetic number, because the mean of its divisors is an integer number (2026963944).

Almost surely, 2^11992869789 is an apocalyptic number.

It is an amenable number.

11992869789 is a deficient number, since it is larger than the sum of its proper divisors (4222841763).

11992869789 is an equidigital number, since it uses as much as digits as its factorization.

11992869789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56304627.

The product of its digits is 35271936, while the sum is 69.

The spelling of 11992869789 in words is "eleven billion, nine hundred ninety-two million, eight hundred sixty-nine thousand, seven hundred eighty-nine".