26105650163 has 4 divisors (see below), whose sum is σ = 26109568968. Its totient is φ = 26101731360.

The previous prime is 26105650147. The next prime is 26105650171. The reversal of 26105650163 is 36105650162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36105650162 = 2 ⋅18052825081.

It is a cyclic number.

It is not a de Polignac number, because 26105650163 - 2⁴ = 26105650147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26105652163) 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, 1949393 + ... + 1962738.

It is an arithmetic number, because the mean of its divisors is an integer number (6527392242).

Almost surely, 2^26105650163 is an apocalyptic number.

26105650163 is a deficient number, since it is larger than the sum of its proper divisors (3918805).

26105650163 is an equidigital number, since it uses as much as digits as its factorization.

26105650163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918804.

The product of its (nonzero) digits is 32400, while the sum is 35.

Subtracting 26105650163 from its reverse (36105650162), we obtain a palindrome (9999999999).

The spelling of 26105650163 in words is "twenty-six billion, one hundred five million, six hundred fifty thousand, one hundred sixty-three".