26691746088 has 192 divisors, whose sum is σ = 79245285120. Its totient is φ = 7468070400.

The previous prime is 26691746071. The next prime is 26691746099. The reversal of 26691746088 is 88064719662.

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 47 ways as a sum of consecutive naturals, for example, 19439770 + ... + 19441142.

It is an arithmetic number, because the mean of its divisors is an integer number (412735860).

Almost surely, 2^26691746088 is an apocalyptic number.

26691746088 is a gapful number since it is divisible by the number (28) 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 26691746088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39622642560).

26691746088 is an abundant number, since it is smaller than the sum of its proper divisors (52553539032).

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

26691746088 is a wasteful number, since it uses less digits than its factorization.

26691746088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 26691746088 in words is "twenty-six billion, six hundred ninety-one million, seven hundred forty-six thousand, eighty-eight".