12190866850 has 24 divisors (see below), whose sum is σ = 22994385408. Its totient is φ = 4807664400.

The previous prime is 12190866841. The next prime is 12190866871. The reversal of 12190866850 is 5866809121.

It is a self number, because there is not a number n which added to its sum of digits gives 12190866850.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1713474 + ... + 1720573.

It is an arithmetic number, because the mean of its divisors is an integer number (958099392).

Almost surely, 2^12190866850 is an apocalyptic number.

12190866850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12190866850 is a deficient number, since it is larger than the sum of its proper divisors (10803518558).

12190866850 is a wasteful number, since it uses less digits than its factorization.

12190866850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434130 (or 3434125 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 12190866850 in words is "twelve billion, one hundred ninety million, eight hundred sixty-six thousand, eight hundred fifty".