12129004984 has 8 divisors (see below), whose sum is σ = 22741884360. Its totient is φ = 6064502488.

The previous prime is 12129004981. The next prime is 12129004991. The reversal of 12129004984 is 48940092121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12129004984² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12129004981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758062804 + ... + 758062819.

It is an arithmetic number, because the mean of its divisors is an integer number (2842735545).

Almost surely, 2^12129004984 is an apocalyptic number.

It is an amenable number.

12129004984 is a deficient number, since it is larger than the sum of its proper divisors (10612879376).

12129004984 is a wasteful number, since it uses less digits than its factorization.

12129004984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516125629 (or 1516125625 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 12129004984 in words is "twelve billion, one hundred twenty-nine million, four thousand, nine hundred eighty-four".