105891298813 has 4 divisors (see below), whose sum is σ = 109542722940. Its totient is φ = 102239874688.

The previous prime is 105891298787. The next prime is 105891298817. The reversal of 105891298813 is 318892198501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18111238084 + 87780060729 = 134578^2 + 296277^2 .

It is a cyclic number.

It is not a de Polignac number, because 105891298813 - 2¹³ = 105891290621 is a prime.

It is a super-2 number, since 2×105891298813² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105891298817) 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, 1825712020 + ... + 1825712077.

It is an arithmetic number, because the mean of its divisors is an integer number (27385680735).

Almost surely, 2^105891298813 is an apocalyptic number.

It is an amenable number.

105891298813 is a deficient number, since it is larger than the sum of its proper divisors (3651424127).

105891298813 is an equidigital number, since it uses as much as digits as its factorization.

105891298813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3651424126.

The product of its (nonzero) digits is 1244160, while the sum is 55.

The spelling of 105891298813 in words is "one hundred five billion, eight hundred ninety-one million, two hundred ninety-eight thousand, eight hundred thirteen".