26026001820 has 144 divisors (see below), whose sum is σ = 97163801280. Its totient is φ = 5491196928.

The previous prime is 26026001803. The next prime is 26026001839. The reversal of 26026001820 is 2810062062.

26026001820 is a `hidden beast` number, since 26 + 0 + 2 + 600 + 18 + 20 = 666.

It is a super-3 number, since 3×26026001820³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 778065 + ... + 810824.

It is an arithmetic number, because the mean of its divisors is an integer number (674748620).

Almost surely, 2^26026001820 is an apocalyptic number.

26026001820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26026001820 is an abundant number, since it is smaller than the sum of its proper divisors (71137799460).

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

26026001820 is a wasteful number, since it uses less digits than its factorization.

26026001820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588924 (or 1588919 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 26026001820 its reverse (2810062062), we get a palindrome (28836063882).

The spelling of 26026001820 in words is "twenty-six billion, twenty-six million, one thousand, eight hundred twenty".