12434622643420 has 12 divisors (see below), whose sum is σ = 26112707551224. Its totient is φ = 4973849057360.

The previous prime is 12434622643367. The next prime is 12434622643483. The reversal of 12434622643420 is 2434622643421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310865566066 + ... + 310865566105.

It is an arithmetic number, because the mean of its divisors is an integer number (2176058962602).

Almost surely, 2^{12434622643420} is an apocalyptic number.

12434622643420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434622643420 is an abundant number, since it is smaller than the sum of its proper divisors (13678084907804).

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

12434622643420 is a wasteful number, since it uses less digits than its factorization.

12434622643420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621731132180 (or 621731132178 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 43.

Subtracting from 12434622643420 its reverse (2434622643421), we obtain a palindrome (9999999999999).

The spelling of 12434622643420 in words is "twelve trillion, four hundred thirty-four billion, six hundred twenty-two million, six hundred forty-three thousand, four hundred twenty".