12891306930 has 16 divisors (see below), whose sum is σ = 30939136704. Its totient is φ = 3437681840.

The previous prime is 12891306889. The next prime is 12891306931. The reversal of 12891306930 is 3960319821.

It is not an unprimeable number, because it can be changed into a prime (12891306931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214855086 + ... + 214855145.

It is an arithmetic number, because the mean of its divisors is an integer number (1933696044).

Almost surely, 2^12891306930 is an apocalyptic number.

12891306930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12891306930 is an abundant number, since it is smaller than the sum of its proper divisors (18047829774).

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

12891306930 is a wasteful number, since it uses less digits than its factorization.

12891306930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429710241.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 12891306930 in words is "twelve billion, eight hundred ninety-one million, three hundred six thousand, nine hundred thirty".