105842398539 has 8 divisors (see below), whose sum is σ = 141147349200. Its totient is φ = 70549523456.

The previous prime is 105842398523. The next prime is 105842398553. The reversal of 105842398539 is 935893248501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105842398539 - 2⁴ = 105842398523 is a prime.

It is a super-2 number, since 2×105842398539² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105842398139) 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, 2998422 + ... + 3033515.

It is an arithmetic number, because the mean of its divisors is an integer number (17643418650).

Almost surely, 2^105842398539 is an apocalyptic number.

105842398539 is a deficient number, since it is larger than the sum of its proper divisors (35304950661).

105842398539 is an equidigital number, since it uses as much as digits as its factorization.

105842398539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037789.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 105842398539 in words is "one hundred five billion, eight hundred forty-two million, three hundred ninety-eight thousand, five hundred thirty-nine".