17247320426401 has 4 divisors (see below), whose sum is σ = 18574037382292. Its totient is φ = 15920603470512.

The previous prime is 17247320426387. The next prime is 17247320426449. The reversal of 17247320426401 is 10462402374271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3227717662225 + 14019602764176 = 1796585^2 + 3744276^2 .

It is not a de Polignac number, because 17247320426401 - 2¹⁷ = 17247320295329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17247320426461) 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, 663358477926 + ... + 663358477951.

It is an arithmetic number, because the mean of its divisors is an integer number (4643509345573).

Almost surely, 2^{17247320426401} is an apocalyptic number.

It is an amenable number.

17247320426401 is a deficient number, since it is larger than the sum of its proper divisors (1326716955891).

17247320426401 is a wasteful number, since it uses less digits than its factorization.

17247320426401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326716955890.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 17247320426401 in words is "seventeen trillion, two hundred forty-seven billion, three hundred twenty million, four hundred twenty-six thousand, four hundred one".