202471049717 has 4 divisors (see below), whose sum is σ = 203311178796. Its totient is φ = 201630920640.

The previous prime is 202471049689. The next prime is 202471049719. The reversal of 202471049717 is 717940174202.

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 114270365521 + 88200684196 = 338039^2 + 296986^2 .

It is a cyclic number.

It is not a de Polignac number, because 202471049717 - 2¹⁴ = 202471033333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202471049719) 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, 420064178 + ... + 420064659.

It is an arithmetic number, because the mean of its divisors is an integer number (50827794699).

Almost surely, 2^202471049717 is an apocalyptic number.

It is an amenable number.

202471049717 is a deficient number, since it is larger than the sum of its proper divisors (840129079).

202471049717 is an equidigital number, since it uses as much as digits as its factorization.

202471049717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840129078.

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 202471049717 in words is "two hundred two billion, four hundred seventy-one million, forty-nine thousand, seven hundred seventeen".