26508868068663 has 32 divisors (see below), whose sum is σ = 39921430827200. Its totient is φ = 17380589385600.

The previous prime is 26508868068649. The next prime is 26508868068673. The reversal of 26508868068663 is 36686086880562.

It is not a de Polignac number, because 26508868068663 - 2¹⁰ = 26508868067639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26508868068591 and 26508868068600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26508868068643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11581473 + ... + 13680213.

It is an arithmetic number, because the mean of its divisors is an integer number (1247544713350).

Almost surely, 2^{26508868068663} is an apocalyptic number.

26508868068663 is a deficient number, since it is larger than the sum of its proper divisors (13412562758537).

26508868068663 is a wasteful number, since it uses less digits than its factorization.

26508868068663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106480 (or 2106474 counting only the distinct ones).

The product of its (nonzero) digits is 955514880, while the sum is 72.

The spelling of 26508868068663 in words is "twenty-six trillion, five hundred eight billion, eight hundred sixty-eight million, sixty-eight thousand, six hundred sixty-three".