12840451350 has 24 divisors (see below), whose sum is σ = 31844319720. Its totient is φ = 3424120320.

The previous prime is 12840451333. The next prime is 12840451357. The reversal of 12840451350 is 5315404821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12840451357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42801355 + ... + 42801654.

It is an arithmetic number, because the mean of its divisors is an integer number (1326846655).

Almost surely, 2^12840451350 is an apocalyptic number.

12840451350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12840451350 is an abundant number, since it is smaller than the sum of its proper divisors (19003868370).

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

12840451350 is a wasteful number, since it uses less digits than its factorization.

12840451350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85603024 (or 85603019 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 12840451350 in words is "twelve billion, eight hundred forty million, four hundred fifty-one thousand, three hundred fifty".