26368647552660 has 144 divisors (see below), whose sum is σ = 85953094678080. Its totient is φ = 6022442764800.

The previous prime is 26368647552647. The next prime is 26368647552673. The reversal of 26368647552660 is 6625574686362.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26368647552647) and next prime (26368647552673).

It is a junction number, because it is equal to n+sod(n) for n = 26368647552591 and 26368647552600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310635 + ... + 7268685.

It is an arithmetic number, because the mean of its divisors is an integer number (596896490820).

Almost surely, 2^{26368647552660} is an apocalyptic number.

26368647552660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26368647552660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42976547339040).

26368647552660 is an abundant number, since it is smaller than the sum of its proper divisors (59584447125420).

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

26368647552660 is a wasteful number, since it uses less digits than its factorization.

26368647552660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959366 (or 6959357 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 66.

The spelling of 26368647552660 in words is "twenty-six trillion, three hundred sixty-eight billion, six hundred forty-seven million, five hundred fifty-two thousand, six hundred sixty".