15422401609 has 2 divisors, whose sum is σ = 15422401610. Its totient is φ = 15422401608.

The previous prime is 15422401597. The next prime is 15422401639. The reversal of 15422401609 is 90610422451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11836787209 + 3585614400 = 108797^2 + 59880^2 .

It is a cyclic number.

It is not a de Polignac number, because 15422401609 - 2¹⁷ = 15422270537 is a prime.

It is not a weakly prime, because it can be changed into another prime (15422401639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7711200804 + 7711200805.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200805).

Almost surely, 2^15422401609 is an apocalyptic number.

It is an amenable number.

15422401609 is a deficient number, since it is larger than the sum of its proper divisors (1).

15422401609 is an equidigital number, since it uses as much as digits as its factorization.

15422401609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 15422401609 in words is "fifteen billion, four hundred twenty-two million, four hundred one thousand, six hundred nine".