26992011660768 has 1152 divisors, whose sum is σ = 105290648064000. Its totient is φ = 6633902177280.

The previous prime is 26992011660751. The next prime is 26992011660829. The reversal of 26992011660768 is 86706611029962.

26992011660768 is a `hidden beast` number, since 2 + 6 + 9 + 9 + 2 + 0 + 1 + 16 + 607 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 11139912805 + ... + 11139915227.

It is an arithmetic number, because the mean of its divisors is an integer number (91398132000).

Almost surely, 2^{26992011660768} is an apocalyptic number.

26992011660768 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 26992011660768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52645324032000).

26992011660768 is an abundant number, since it is smaller than the sum of its proper divisors (78298636403232).

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

26992011660768 is a wasteful number, since it uses less digits than its factorization.

26992011660768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 26992011660768 in words is "twenty-six trillion, nine hundred ninety-two billion, eleven million, six hundred sixty thousand, seven hundred sixty-eight".