12423290445 has 24 divisors (see below), whose sum is σ = 21579850656. Its totient is φ = 6611555808.

The previous prime is 12423290417. The next prime is 12423290461. The reversal of 12423290445 is 54409232421.

It is a happy number.

12423290445 is a `hidden beast` number, since 124 + 2 + 3 + 2 + 90 + 445 = 666.

It is not a de Polignac number, because 12423290445 - 2¹⁷ = 12423159373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274567 + ... + 316596.

It is an arithmetic number, because the mean of its divisors is an integer number (899160444).

Almost surely, 2^12423290445 is an apocalyptic number.

12423290445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12423290445 is a deficient number, since it is larger than the sum of its proper divisors (9156560211).

12423290445 is a wasteful number, since it uses less digits than its factorization.

12423290445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591641 (or 591638 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 12423290445 in words is "twelve billion, four hundred twenty-three million, two hundred ninety thousand, four hundred forty-five".