12744390834 has 24 divisors (see below), whose sum is σ = 31557539520. Its totient is φ = 3641254488.

The previous prime is 12744390823. The next prime is 12744390839. The reversal of 12744390834 is 43809344721.

12744390834 is a `hidden beast` number, since 127 + 443 + 9 + 0 + 83 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12744390834.

It is not an unprimeable number, because it can be changed into a prime (12744390839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50572854 + ... + 50573105.

It is an arithmetic number, because the mean of its divisors is an integer number (1314897480).

Almost surely, 2^12744390834 is an apocalyptic number.

12744390834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12744390834 is an abundant number, since it is smaller than the sum of its proper divisors (18813148686).

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

12744390834 is a wasteful number, since it uses less digits than its factorization.

12744390834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101145974 (or 101145971 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 12744390834 in words is "twelve billion, seven hundred forty-four million, three hundred ninety thousand, eight hundred thirty-four".