17308421954 has 4 divisors (see below), whose sum is σ = 25962632934. Its totient is φ = 8654210976.

The previous prime is 17308421951. The next prime is 17308421981. The reversal of 17308421954 is 45912480371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45912480371 = 5393 ⋅8513347.

It can be written as a sum of positive squares in only one way, i.e., 16907020729 + 401401225 = 130027^2 + 20035^2 .

It is not an unprimeable number, because it can be changed into a prime (17308421951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4327105487 + ... + 4327105490.

Almost surely, 2^17308421954 is an apocalyptic number.

17308421954 is a deficient number, since it is larger than the sum of its proper divisors (8654210980).

17308421954 is an equidigital number, since it uses as much as digits as its factorization.

17308421954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8654210979.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 17308421954 in words is "seventeen billion, three hundred eight million, four hundred twenty-one thousand, nine hundred fifty-four".