26718307616 has 144 divisors (see below), whose sum is σ = 71887798080. Its totient is φ = 9608901120.

The previous prime is 26718307573. The next prime is 26718307793. The reversal of 26718307616 is 61670381762.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164645 + ... + 283803.

It is an arithmetic number, because the mean of its divisors is an integer number (499220820).

Almost surely, 2^26718307616 is an apocalyptic number.

26718307616 is a gapful number since it is divisible by the number (26) 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 26718307616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35943899040).

26718307616 is an abundant number, since it is smaller than the sum of its proper divisors (45169490464).

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

26718307616 is a wasteful number, since it uses less digits than its factorization.

26718307616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119207 (or 119192 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 26718307616 in words is "twenty-six billion, seven hundred eighteen million, three hundred seven thousand, six hundred sixteen".