12909536292 has 24 divisors (see below), whose sum is σ = 30388823136. Its totient is φ = 4265097088.

The previous prime is 12909536287. The next prime is 12909536329. The reversal of 12909536292 is 29263590921.

It is a happy number.

It is a super-2 number, since 2×12909536292² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4758798 + ... + 4761509.

It is an arithmetic number, because the mean of its divisors is an integer number (1266200964).

Almost surely, 2^12909536292 is an apocalyptic number.

12909536292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12909536292 is an abundant number, since it is smaller than the sum of its proper divisors (17479286844).

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

12909536292 is a wasteful number, since it uses less digits than its factorization.

12909536292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520427 (or 9520425 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 12909536292 in words is "twelve billion, nine hundred nine million, five hundred thirty-six thousand, two hundred ninety-two".