12742423550 has 48 divisors (see below), whose sum is σ = 23983464960. Its totient is φ = 5036425440.

The previous prime is 12742423513. The next prime is 12742423583. The reversal of 12742423550 is 5532424721.

It is a self number, because there is not a number n which added to its sum of digits gives 12742423550.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2587991 + ... + 2592909.

It is an arithmetic number, because the mean of its divisors is an integer number (499655520).

Almost surely, 2^12742423550 is an apocalyptic number.

12742423550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12742423550 is a deficient number, since it is larger than the sum of its proper divisors (11241041410).

12742423550 is a wasteful number, since it uses less digits than its factorization.

12742423550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537 (or 5532 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 12742423550 in words is "twelve billion, seven hundred forty-two million, four hundred twenty-three thousand, five hundred fifty".