12990449184 has 48 divisors (see below), whose sum is σ = 34931645280. Its totient is φ = 4224535040.

The previous prime is 12990449179. The next prime is 12990449201. The reversal of 12990449184 is 48194409921.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646274 + ... + 1654145.

It is an arithmetic number, because the mean of its divisors is an integer number (727742610).

Almost surely, 2^12990449184 is an apocalyptic number.

It is an amenable number.

12990449184 is an abundant number, since it is smaller than the sum of its proper divisors (21941196096).

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

12990449184 is a wasteful number, since it uses less digits than its factorization.

12990449184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300473 (or 3300465 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 12990449184 in words is "twelve billion, nine hundred ninety million, four hundred forty-nine thousand, one hundred eighty-four".