12426742340 has 48 divisors (see below), whose sum is σ = 26494521984. Its totient is φ = 4894982400.

The previous prime is 12426742333. The next prime is 12426742343. The reversal of 12426742340 is 4324762421.

It is a self number, because there is not a number n which added to its sum of digits gives 12426742340.

It is not an unprimeable number, because it can be changed into a prime (12426742343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1340120 + ... + 1349360.

It is an arithmetic number, because the mean of its divisors is an integer number (551969208).

Almost surely, 2^12426742340 is an apocalyptic number.

12426742340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12426742340 is an abundant number, since it is smaller than the sum of its proper divisors (14067779644).

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

12426742340 is a wasteful number, since it uses less digits than its factorization.

12426742340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268 (or 10266 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 12426742340 in words is "twelve billion, four hundred twenty-six million, seven hundred forty-two thousand, three hundred forty".