17466472421 has 2 divisors, whose sum is σ = 17466472422. Its totient is φ = 17466472420.

The previous prime is 17466472409. The next prime is 17466472477. The reversal of 17466472421 is 12427466471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17343573025 + 122899396 = 131695^2 + 11086^2 .

It is a cyclic number.

It is not a de Polignac number, because 17466472421 - 2⁶ = 17466472357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17466412421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8733236210 + 8733236211.

It is an arithmetic number, because the mean of its divisors is an integer number (8733236211).

Almost surely, 2^17466472421 is an apocalyptic number.

It is an amenable number.

17466472421 is a deficient number, since it is larger than the sum of its proper divisors (1).

17466472421 is an equidigital number, since it uses as much as digits as its factorization.

17466472421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 44.

The spelling of 17466472421 in words is "seventeen billion, four hundred sixty-six million, four hundred seventy-two thousand, four hundred twenty-one".