5918239538 has 4 divisors (see below), whose sum is σ = 8877359310. Its totient is φ = 2959119768.

The previous prime is 5918239519. The next prime is 5918239559. The reversal of 5918239538 is 8359328195.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8359328195 = 5 ⋅1671865639.

It can be written as a sum of positive squares in only one way, i.e., 3444868249 + 2473371289 = 58693^2 + 49733^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5918239538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1479559883 + ... + 1479559886.

Almost surely, 2^5918239538 is an apocalyptic number.

5918239538 is a deficient number, since it is larger than the sum of its proper divisors (2959119772).

5918239538 is a wasteful number, since it uses less digits than its factorization.

5918239538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959119771.

The product of its digits is 2332800, while the sum is 53.

The square root of 5918239538 is about 76930.0951383787. The cubic root of 5918239538 is about 1808.8290033688.

The spelling of 5918239538 in words is "five billion, nine hundred eighteen million, two hundred thirty-nine thousand, five hundred thirty-eight".