538601111217 has 24 divisors (see below), whose sum is σ = 855650001024. Its totient is φ = 324394773984.

The previous prime is 538601111203. The next prime is 538601111239. The reversal of 538601111217 is 712111106835.

It is a happy number.

538601111217 is a `hidden beast` number, since 5 + 38 + 601 + 1 + 1 + 1 + 2 + 17 = 666.

It is not a de Polignac number, because 538601111217 - 2⁷ = 538601111089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538601111317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48967143 + ... + 48978140.

It is an arithmetic number, because the mean of its divisors is an integer number (35652083376).

Almost surely, 2^538601111217 is an apocalyptic number.

It is an amenable number.

538601111217 is a deficient number, since it is larger than the sum of its proper divisors (317048889807).

538601111217 is a wasteful number, since it uses less digits than its factorization.

538601111217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97945349 (or 97945346 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The spelling of 538601111217 in words is "five hundred thirty-eight billion, six hundred one million, one hundred eleven thousand, two hundred seventeen".