26205300540 has 72 divisors (see below), whose sum is σ = 80609020128. Its totient is φ = 6889653120.

The previous prime is 26205300503. The next prime is 26205300553. The reversal of 26205300540 is 4500350262.

26205300540 is a `hidden beast` number, since 2 + 620 + 5 + 30 + 0 + 5 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1012467 + ... + 1038026.

It is an arithmetic number, because the mean of its divisors is an integer number (1119569724).

Almost surely, 2^26205300540 is an apocalyptic number.

26205300540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26205300540 is an abundant number, since it is smaller than the sum of its proper divisors (54403719588).

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

26205300540 is a wasteful number, since it uses less digits than its factorization.

26205300540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050579 (or 2050574 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 26205300540 in words is "twenty-six billion, two hundred five million, three hundred thousand, five hundred forty".