17420716403 has 4 divisors (see below), whose sum is σ = 17421182928. Its totient is φ = 17420249880.

The previous prime is 17420716399. The next prime is 17420716477. The reversal of 17420716403 is 30461702471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30461702471 = 5407 ⋅5633753.

It is a cyclic number.

It is not a de Polignac number, because 17420716403 - 2² = 17420716399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17420716003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171863 + ... + 253728.

It is an arithmetic number, because the mean of its divisors is an integer number (4355295732).

Almost surely, 2^17420716403 is an apocalyptic number.

17420716403 is a deficient number, since it is larger than the sum of its proper divisors (466525).

17420716403 is an equidigital number, since it uses as much as digits as its factorization.

17420716403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466524.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 17420716403 in words is "seventeen billion, four hundred twenty million, seven hundred sixteen thousand, four hundred three".