26502643671648 has 48 divisors (see below), whose sum is σ = 71813615118336. Its totient is φ = 8549239893120.

The previous prime is 26502643671593. The next prime is 26502643671677. The reversal of 26502643671648 is 84617634620562.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 26502643671591 and 26502643671600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4452726136 + ... + 4452732087.

It is an arithmetic number, because the mean of its divisors is an integer number (1496116981632).

Almost surely, 2^{26502643671648} is an apocalyptic number.

It is an amenable number.

26502643671648 is an abundant number, since it is smaller than the sum of its proper divisors (45310971446688).

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

26502643671648 is a wasteful number, since it uses less digits than its factorization.

26502643671648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905458267 (or 8905458259 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 60.

The spelling of 26502643671648 in words is "twenty-six trillion, five hundred two billion, six hundred forty-three million, six hundred seventy-one thousand, six hundred forty-eight".