12423449277 has 40 divisors (see below), whose sum is σ = 18758515776. Its totient is φ = 8193322368.

The previous prime is 12423449257. The next prime is 12423449317. The reversal of 12423449277 is 77294432421.

12423449277 is a `hidden beast` number, since 124 + 2 + 34 + 492 + 7 + 7 = 666.

It is not a de Polignac number, because 12423449277 - 2¹⁶ = 12423383741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423449257) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6653298 + ... + 6655164.

Almost surely, 2^12423449277 is an apocalyptic number.

It is an amenable number.

12423449277 is a deficient number, since it is larger than the sum of its proper divisors (6335066499).

12423449277 is a wasteful number, since it uses less digits than its factorization.

12423449277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719 (or 2710 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The spelling of 12423449277 in words is "twelve billion, four hundred twenty-three million, four hundred forty-nine thousand, two hundred seventy-seven".