12430507549 has 4 divisors (see below), whose sum is σ = 12449313820. Its totient is φ = 12411701280.

The previous prime is 12430507547. The next prime is 12430507603. The reversal of 12430507549 is 94570503421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94570503421 = 587 ⋅161108183.

It can be written as a sum of positive squares in 2 ways, for example, as 10507685049 + 1922822500 = 102507^2 + 43850^2 .

It is a cyclic number.

It is not a de Polignac number, because 12430507549 - 2¹ = 12430507547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430507543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9402144 + ... + 9403465.

It is an arithmetic number, because the mean of its divisors is an integer number (3112328455).

Almost surely, 2^12430507549 is an apocalyptic number.

It is an amenable number.

12430507549 is a deficient number, since it is larger than the sum of its proper divisors (18806271).

12430507549 is an equidigital number, since it uses as much as digits as its factorization.

12430507549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18806270.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 12430507549 in words is "twelve billion, four hundred thirty million, five hundred seven thousand, five hundred forty-nine".