26500541650 has 48 divisors (see below), whose sum is σ = 56602136160. Its totient is φ = 9129369600.

The previous prime is 26500541569. The next prime is 26500541653. The reversal of 26500541650 is 5614500562.

It is a super-3 number, since 3×26500541650³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (26500541653) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1257519 + ... + 1278418.

It is an arithmetic number, because the mean of its divisors is an integer number (1179211170).

Almost surely, 2^26500541650 is an apocalyptic number.

26500541650 is an abundant number, since it is smaller than the sum of its proper divisors (30101594510).

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

26500541650 is a wasteful number, since it uses less digits than its factorization.

26500541650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535979 (or 2535974 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 26500541650 in words is "twenty-six billion, five hundred million, five hundred forty-one thousand, six hundred fifty".