12430278489 has 16 divisors (see below), whose sum is σ = 16812748800. Its totient is φ = 8168109840.

The previous prime is 12430278481. The next prime is 12430278491. The reversal of 12430278489 is 98487203421.

It is not a de Polignac number, because 12430278489 - 2³ = 12430278481 is a prime.

It is a super-2 number, since 2×12430278489² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12430278481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33417 + ... + 161174.

It is an arithmetic number, because the mean of its divisors is an integer number (1050796800).

Almost surely, 2^12430278489 is an apocalyptic number.

It is an amenable number.

12430278489 is a deficient number, since it is larger than the sum of its proper divisors (4382470311).

12430278489 is a wasteful number, since it uses less digits than its factorization.

12430278489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194900.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 12430278489 in words is "twelve billion, four hundred thirty million, two hundred seventy-eight thousand, four hundred eighty-nine".