26506528704 has 84 divisors (see below), whose sum is σ = 76129261000. Its totient is φ = 8817707520.

The previous prime is 26506528693. The next prime is 26506528739. The reversal of 26506528704 is 40782560562.

26506528704 is a `hidden beast` number, since 2 + 6 + 50 + 6 + 528 + 70 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26506528704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241314 + ... + 333534.

Almost surely, 2^26506528704 is an apocalyptic number.

26506528704 is a gapful number since it is divisible by the number (24) 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 26506528704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38064630500).

26506528704 is an abundant number, since it is smaller than the sum of its proper divisors (49622732296).

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

26506528704 is a wasteful number, since it uses less digits than its factorization.

26506528704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92738 (or 92725 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 26506528704 in words is "twenty-six billion, five hundred six million, five hundred twenty-eight thousand, seven hundred four".