26086420660 has 24 divisors (see below), whose sum is σ = 55313346816. Its totient is φ = 10333260960.

The previous prime is 26086420643. The next prime is 26086420667. The reversal of 26086420660 is 6602468062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26086420667) 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 7 ways as a sum of consecutive naturals, for example, 6329596 + ... + 6333715.

It is an arithmetic number, because the mean of its divisors is an integer number (2304722784).

Almost surely, 2^26086420660 is an apocalyptic number.

26086420660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26086420660 is an abundant number, since it is smaller than the sum of its proper divisors (29226926156).

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

26086420660 is a wasteful number, since it uses less digits than its factorization.

26086420660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663423 (or 12663421 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 26086420660 in words is "twenty-six billion, eighty-six million, four hundred twenty thousand, six hundred sixty".