129456241188 has 12 divisors (see below), whose sum is σ = 302064562800. Its totient is φ = 43152080392.

The previous prime is 129456241171. The next prime is 129456241237. The reversal of 129456241188 is 881142654921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 129456241188.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5394010038 + ... + 5394010061.

It is an arithmetic number, because the mean of its divisors is an integer number (25172046900).

Almost surely, 2^129456241188 is an apocalyptic number.

It is an amenable number.

129456241188 is an abundant number, since it is smaller than the sum of its proper divisors (172608321612).

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

129456241188 is a wasteful number, since it uses less digits than its factorization.

129456241188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10788020106 (or 10788020104 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The spelling of 129456241188 in words is "one hundred twenty-nine billion, four hundred fifty-six million, two hundred forty-one thousand, one hundred eighty-eight".