12404343547 has 2 divisors, whose sum is σ = 12404343548. Its totient is φ = 12404343546.

The previous prime is 12404343409. The next prime is 12404343577. The reversal of 12404343547 is 74534340421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12404343547 is a prime.

It is not a weakly prime, because it can be changed into another prime (12404343577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202171773 + 6202171774.

It is an arithmetic number, because the mean of its divisors is an integer number (6202171774).

Almost surely, 2^12404343547 is an apocalyptic number.

12404343547 is a deficient number, since it is larger than the sum of its proper divisors (1).

12404343547 is an equidigital number, since it uses as much as digits as its factorization.

12404343547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 37.

Adding to 12404343547 its reverse (74534340421), we get a palindrome (86938683968).

The spelling of 12404343547 in words is "twelve billion, four hundred four million, three hundred forty-three thousand, five hundred forty-seven".