26081020105 has 32 divisors (see below), whose sum is σ = 36405642240. Its totient is φ = 17567746560.

The previous prime is 26081019989. The next prime is 26081020123. The reversal of 26081020105 is 50102018062.

It is not a de Polignac number, because 26081020105 - 2²⁵ = 26047465673 is a prime.

It is a super-2 number, since 2×26081020105² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26081020105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520765 + ... + 568645.

It is an arithmetic number, because the mean of its divisors is an integer number (1137676320).

Almost surely, 2^26081020105 is an apocalyptic number.

It is an amenable number.

26081020105 is a deficient number, since it is larger than the sum of its proper divisors (10324622135).

26081020105 is a wasteful number, since it uses less digits than its factorization.

26081020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48169.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 26081020105 its reverse (50102018062), we get a palindrome (76183038167).

The spelling of 26081020105 in words is "twenty-six billion, eighty-one million, twenty thousand, one hundred five".