12390430947 has 8 divisors (see below), whose sum is σ = 17238860544. Its totient is φ = 7901144328.

The previous prime is 12390430939. The next prime is 12390430957. The reversal of 12390430947 is 74903409321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12390430947 - 2³ = 12390430939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12390430899 and 12390430908.

It is not an unprimeable number, because it can be changed into a prime (12390430957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89785663 + ... + 89785800.

It is an arithmetic number, because the mean of its divisors is an integer number (2154857568).

Almost surely, 2^12390430947 is an apocalyptic number.

12390430947 is a deficient number, since it is larger than the sum of its proper divisors (4848429597).

12390430947 is a wasteful number, since it uses less digits than its factorization.

12390430947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179571489.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 12390430947 in words is "twelve billion, three hundred ninety million, four hundred thirty thousand, nine hundred forty-seven".