538861235079 has 16 divisors (see below), whose sum is σ = 730446216704. Its totient is φ = 353261541600.

The previous prime is 538861235057. The next prime is 538861235093. The reversal of 538861235079 is 970532168835.

It is a happy number.

It is not a de Polignac number, because 538861235079 - 2¹⁶ = 538861169543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538861235009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348174 + ... + 1094964.

It is an arithmetic number, because the mean of its divisors is an integer number (45652888544).

Almost surely, 2^538861235079 is an apocalyptic number.

538861235079 is a deficient number, since it is larger than the sum of its proper divisors (191584981625).

538861235079 is a wasteful number, since it uses less digits than its factorization.

538861235079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750798.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 538861235079 in words is "five hundred thirty-eight billion, eight hundred sixty-one million, two hundred thirty-five thousand, seventy-nine".