12247438959 has 12 divisors (see below), whose sum is σ = 20217994576. Its totient is φ = 6998536512.

The previous prime is 12247438939. The next prime is 12247438963. The reversal of 12247438959 is 95983474221.

12247438959 is a `hidden beast` number, since 12 + 247 + 4 + 389 + 5 + 9 = 666.

It is not a de Polignac number, because 12247438959 - 2¹² = 12247434863 is a prime.

It is a super-2 number, since 2×12247438959² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247438939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97201834 + ... + 97201959.

Almost surely, 2^12247438959 is an apocalyptic number.

12247438959 is a deficient number, since it is larger than the sum of its proper divisors (7970555617).

12247438959 is a wasteful number, since it uses less digits than its factorization.

12247438959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194403806 (or 194403803 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 12247438959 in words is "twelve billion, two hundred forty-seven million, four hundred thirty-eight thousand, nine hundred fifty-nine".