12190935680 has 128 divisors (see below), whose sum is σ = 36335468160. Its totient is φ = 3799756800.

The previous prime is 12190935599. The next prime is 12190935689. The reversal of 12190935680 is 8653909121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (12190935689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74411 + ... + 172970.

It is an arithmetic number, because the mean of its divisors is an integer number (283870845).

Almost surely, 2^12190935680 is an apocalyptic number.

12190935680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12190935680 is an abundant number, since it is smaller than the sum of its proper divisors (24144532480).

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

12190935680 is a wasteful number, since it uses less digits than its factorization.

12190935680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247418 (or 247406 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 12190935680 in words is "twelve billion, one hundred ninety million, nine hundred thirty-five thousand, six hundred eighty".