12684311267430 has 64 divisors (see below), whose sum is σ = 33226011157248. Its totient is φ = 3073486584960.

The previous prime is 12684311267399. The next prime is 12684311267431. The reversal of 12684311267430 is 3476211348621.

It is a self number, because there is not a number n which added to its sum of digits gives 12684311267430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684311267431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8683764 + ... + 10038743.

It is an arithmetic number, because the mean of its divisors is an integer number (519156424332).

Almost surely, 2^{12684311267430} is an apocalyptic number.

12684311267430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12684311267430 is an abundant number, since it is smaller than the sum of its proper divisors (20541699889818).

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

12684311267430 is a wasteful number, since it uses less digits than its factorization.

12684311267430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18724581.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 12684311267430 in words is "twelve trillion, six hundred eighty-four billion, three hundred eleven million, two hundred sixty-seven thousand, four hundred thirty".