13108026107861 has 4 divisors (see below), whose sum is σ = 13108127779500. Its totient is φ = 13107924436224.

The previous prime is 13108026107791. The next prime is 13108026107887. The reversal of 13108026107861 is 16870162080131.

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 1533102094225 + 11574924013636 = 1238185^2 + 3402194^2 .

It is a cyclic number.

It is not a de Polignac number, because 13108026107861 - 2¹⁰ = 13108026106837 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 (13108026107161) 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, 50642186 + ... + 50900363.

It is an arithmetic number, because the mean of its divisors is an integer number (3277031944875).

Almost surely, 2^{13108026107861} is an apocalyptic number.

It is an amenable number.

13108026107861 is a deficient number, since it is larger than the sum of its proper divisors (101671639).

13108026107861 is a wasteful number, since it uses less digits than its factorization.

13108026107861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101671638.

The product of its (nonzero) digits is 96768, while the sum is 44.

Adding to 13108026107861 its reverse (16870162080131), we get a palindrome (29978188187992).

The spelling of 13108026107861 in words is "thirteen trillion, one hundred eight billion, twenty-six million, one hundred seven thousand, eight hundred sixty-one".