26489881829 has 32 divisors (see below), whose sum is σ = 28378667520. Its totient is φ = 24683932672.

The previous prime is 26489881813. The next prime is 26489881837. The reversal of 26489881829 is 92818898462.

It is not a de Polignac number, because 26489881829 - 2⁴ = 26489881813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26489883829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45127274 + ... + 45127860.

It is an arithmetic number, because the mean of its divisors is an integer number (886833360).

Almost surely, 2^26489881829 is an apocalyptic number.

26489881829 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

26489881829 is a deficient number, since it is larger than the sum of its proper divisors (1888785691).

26489881829 is a wasteful number, since it uses less digits than its factorization.

26489881829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its digits is 31850496, while the sum is 65.

The spelling of 26489881829 in words is "twenty-six billion, four hundred eighty-nine million, eight hundred eighty-one thousand, eight hundred twenty-nine".