15434004427 has 2 divisors, whose sum is σ = 15434004428. Its totient is φ = 15434004426.

The previous prime is 15434004401. The next prime is 15434004497. The reversal of 15434004427 is 72440043451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15434004427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15434004392 and 15434004401.

It is not a weakly prime, because it can be changed into another prime (15434004497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7717002213 + 7717002214.

It is an arithmetic number, because the mean of its divisors is an integer number (7717002214).

Almost surely, 2^15434004427 is an apocalyptic number.

15434004427 is a deficient number, since it is larger than the sum of its proper divisors (1).

15434004427 is an equidigital number, since it uses as much as digits as its factorization.

15434004427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 15434004427 its reverse (72440043451), we get a palindrome (87874047878).

The spelling of 15434004427 in words is "fifteen billion, four hundred thirty-four million, four thousand, four hundred twenty-seven".