538952643217 has 8 divisors (see below), whose sum is σ = 548753446080. Its totient is φ = 529174040880.

The previous prime is 538952643199. The next prime is 538952643221. The reversal of 538952643217 is 712346259835.

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-538952643217 is a prime.

It is a super-2 number, since 2×538952643217² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538952643287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5501134 + ... + 5598247.

It is an arithmetic number, because the mean of its divisors is an integer number (68594180760).

Almost surely, 2^538952643217 is an apocalyptic number.

It is an amenable number.

538952643217 is a deficient number, since it is larger than the sum of its proper divisors (9800802863).

538952643217 is a wasteful number, since it uses less digits than its factorization.

538952643217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100263.

The product of its digits is 10886400, while the sum is 55.

The spelling of 538952643217 in words is "five hundred thirty-eight billion, nine hundred fifty-two million, six hundred forty-three thousand, two hundred seventeen".