105842398538 has 8 divisors (see below), whose sum is σ = 158947567488. Its totient is φ = 52859876044.

The previous prime is 105842398523. The next prime is 105842398553. The reversal of 105842398538 is 835893248501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (105842398523) and next prime (105842398553).

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

It is a super-2 number, since 2×105842398538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30659456 + ... + 30662907.

It is an arithmetic number, because the mean of its divisors is an integer number (19868445936).

Almost surely, 2^105842398538 is an apocalyptic number.

105842398538 is a deficient number, since it is larger than the sum of its proper divisors (53105168950).

105842398538 is an equidigital number, since it uses as much as digits as its factorization.

105842398538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61323228.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 105842398538 in words is "one hundred five billion, eight hundred forty-two million, three hundred ninety-eight thousand, five hundred thirty-eight".