12911804730 has 512 divisors, whose sum is σ = 41825894400. Its totient is φ = 2822688000.

The previous prime is 12911804713. The next prime is 12911804753. The reversal of 12911804730 is 3740811921.

It is a happy number.

12911804730 is a `hidden beast` number, since 1 + 2 + 9 + 1 + 180 + 473 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 211668900 + ... + 211668960.

It is an arithmetic number, because the mean of its divisors is an integer number (81691200).

Almost surely, 2^12911804730 is an apocalyptic number.

12911804730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12911804730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20912947200).

12911804730 is an abundant number, since it is smaller than the sum of its proper divisors (28914089670).

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

12911804730 is a wasteful number, since it uses less digits than its factorization.

12911804730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 12911804730 in words is "twelve billion, nine hundred eleven million, eight hundred four thousand, seven hundred thirty".