538729634291 has 4 divisors (see below), whose sum is σ = 539119736784. Its totient is φ = 538339531800.

The previous prime is 538729634227. The next prime is 538729634323. The reversal of 538729634291 is 192436927835.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 538729634291 - 2⁶ = 538729634227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538729634291.

It is not an unprimeable number, because it can be changed into a prime (538729630291) 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, 195049175 + ... + 195051936.

It is an arithmetic number, because the mean of its divisors is an integer number (134779934196).

Almost surely, 2^538729634291 is an apocalyptic number.

538729634291 is a deficient number, since it is larger than the sum of its proper divisors (390102493).

538729634291 is a wasteful number, since it uses less digits than its factorization.

538729634291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390102492.

The product of its digits is 19595520, while the sum is 59.

The spelling of 538729634291 in words is "five hundred thirty-eight billion, seven hundred twenty-nine million, six hundred thirty-four thousand, two hundred ninety-one".