12111972846 has 16 divisors (see below), whose sum is σ = 24225025104. Its totient is φ = 4037144384.

The previous prime is 12111972839. The next prime is 12111972863. The reversal of 12111972846 is 64827911121.

It is a junction number, because it is equal to n+sod(n) for n = 12111972798 and 12111972807.

It is a congruent number.

It is an unprimeable number.

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, 234220 + ... + 281216.

It is an arithmetic number, because the mean of its divisors is an integer number (1514064069).

Almost surely, 2^12111972846 is an apocalyptic number.

12111972846 is an abundant number, since it is smaller than the sum of its proper divisors (12113052258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111972846 is a wasteful number, since it uses less digits than its factorization.

12111972846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89955.

The product of its digits is 48384, while the sum is 42.

The spelling of 12111972846 in words is "twelve billion, one hundred eleven million, nine hundred seventy-two thousand, eight hundred forty-six".