26765268380 has 12 divisors (see below), whose sum is σ = 56207063640. Its totient is φ = 10706107344.

The previous prime is 26765268331. The next prime is 26765268407. The reversal of 26765268380 is 8386256762.

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 3 ways as a sum of consecutive naturals, for example, 669131690 + ... + 669131729.

It is an arithmetic number, because the mean of its divisors is an integer number (4683921970).

Almost surely, 2^26765268380 is an apocalyptic number.

26765268380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26765268380 is an abundant number, since it is smaller than the sum of its proper divisors (29441795260).

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

26765268380 is a wasteful number, since it uses less digits than its factorization.

26765268380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338263428 (or 1338263426 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 26765268380 in words is "twenty-six billion, seven hundred sixty-five million, two hundred sixty-eight thousand, three hundred eighty".