26834520660 has 48 divisors (see below), whose sum is σ = 76884029376. Its totient is φ = 6989455872.

The previous prime is 26834520649. The next prime is 26834520673. The reversal of 26834520660 is 6602543862.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5197909 + ... + 5203068.

It is an arithmetic number, because the mean of its divisors is an integer number (1601750612).

Almost surely, 2^26834520660 is an apocalyptic number.

26834520660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26834520660 is an abundant number, since it is smaller than the sum of its proper divisors (50049508716).

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

26834520660 is a wasteful number, since it uses less digits than its factorization.

26834520660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401032 (or 10401030 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 26834520660 in words is "twenty-six billion, eight hundred thirty-four million, five hundred twenty thousand, six hundred sixty".