26502640265020 has 12 divisors (see below), whose sum is σ = 55655544556584. Its totient is φ = 10601056106000.

The previous prime is 26502640264981. The next prime is 26502640265041. The reversal of 26502640265020 is 2056204620562.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662566006606 + ... + 662566006645.

It is an arithmetic number, because the mean of its divisors is an integer number (4637962046382).

Almost surely, 2^{26502640265020} is an apocalyptic number.

26502640265020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26502640265020 is an abundant number, since it is smaller than the sum of its proper divisors (29152904291564).

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

26502640265020 is a wasteful number, since it uses less digits than its factorization.

26502640265020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325132013260 (or 1325132013258 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 26502640265020 its reverse (2056204620562), we get a palindrome (28558844885582).

The spelling of 26502640265020 in words is "twenty-six trillion, five hundred two billion, six hundred forty million, two hundred sixty-five thousand, twenty".