26020645104 has 80 divisors (see below), whose sum is σ = 68848164864. Its totient is φ = 8465184000.

The previous prime is 26020645099. The next prime is 26020645117. The reversal of 26020645104 is 40154602062.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459129 + ... + 512679.

Almost surely, 2^26020645104 is an apocalyptic number.

26020645104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26020645104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34424082432).

26020645104 is an abundant number, since it is smaller than the sum of its proper divisors (42827519760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26020645104 is a wasteful number, since it uses less digits than its factorization.

26020645104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53806 (or 53800 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 26020645104 in words is "twenty-six billion, twenty million, six hundred forty-five thousand, one hundred four".