12190128688 has 10 divisors (see below), whose sum is σ = 23618374364. Its totient is φ = 6095064336.

The previous prime is 12190128659. The next prime is 12190128689. The reversal of 12190128688 is 88682109121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12190128689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380941506 + ... + 380941537.

Almost surely, 2^12190128688 is an apocalyptic number.

It is an amenable number.

12190128688 is a deficient number, since it is larger than the sum of its proper divisors (11428245676).

12190128688 is an equidigital number, since it uses as much as digits as its factorization.

12190128688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761883051 (or 761883045 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 46.

The spelling of 12190128688 in words is "twelve billion, one hundred ninety million, one hundred twenty-eight thousand, six hundred eighty-eight".