71202420217 has 8 divisors (see below), whose sum is σ = 73384502400. Its totient is φ = 69048135504.

The previous prime is 71202420209. The next prime is 71202420229.

71202420217 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71202420217 - 2³ = 71202420209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71202420287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6944167 + ... + 6954412.

It is an arithmetic number, because the mean of its divisors is an integer number (9173062800).

Almost surely, 2^71202420217 is an apocalyptic number.

It is an amenable number.

71202420217 is a deficient number, since it is larger than the sum of its proper divisors (2182082183).

71202420217 is a wasteful number, since it uses less digits than its factorization.

71202420217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13898735.

The product of its (nonzero) digits is 3136, while the sum is 28.

The spelling of 71202420217 in words is "seventy-one billion, two hundred two million, four hundred twenty thousand, two hundred seventeen".