12990609276 has 48 divisors (see below), whose sum is σ = 32204151840. Its totient is φ = 4067884800.

The previous prime is 12990609167. The next prime is 12990609341. The reversal of 12990609276 is 67290609921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491575 + ... + 517326.

It is an arithmetic number, because the mean of its divisors is an integer number (670919830).

Almost surely, 2^12990609276 is an apocalyptic number.

It is an amenable number.

12990609276 is an abundant number, since it is smaller than the sum of its proper divisors (19213542564).

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

12990609276 is a wasteful number, since it uses less digits than its factorization.

12990609276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008974 (or 1008972 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 12990609276 in words is "twelve billion, nine hundred ninety million, six hundred nine thousand, two hundred seventy-six".