217442754401 has 8 divisors (see below), whose sum is σ = 222175094400. Its totient is φ = 212714826928.

The previous prime is 217442754379. The next prime is 217442754421. The reversal of 217442754401 is 104457244712.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-217442754401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (217442754421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003406 + ... + 1200711.

It is an arithmetic number, because the mean of its divisors is an integer number (27771886800).

Almost surely, 2^217442754401 is an apocalyptic number.

It is an amenable number.

217442754401 is a deficient number, since it is larger than the sum of its proper divisors (4732339999).

217442754401 is a wasteful number, since it uses less digits than its factorization.

217442754401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206263.

The product of its (nonzero) digits is 250880, while the sum is 41.

The spelling of 217442754401 in words is "two hundred seventeen billion, four hundred forty-two million, seven hundred fifty-four thousand, four hundred one".