26515027650 has 96 divisors (see below), whose sum is σ = 67361849280. Its totient is φ = 6898510080.

The previous prime is 26515027639. The next prime is 26515027667. The reversal of 26515027650 is 5672051562.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26515027599 and 26515027608.

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 47 ways as a sum of consecutive naturals, for example, 7822156 + ... + 7825544.

It is an arithmetic number, because the mean of its divisors is an integer number (701685930).

Almost surely, 2^26515027650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26515027650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33680924640).

26515027650 is an abundant number, since it is smaller than the sum of its proper divisors (40846821630).

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

26515027650 is a wasteful number, since it uses less digits than its factorization.

26515027650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 26515027650 in words is "twenty-six billion, five hundred fifteen million, twenty-seven thousand, six hundred fifty".