26693500078080 has 2304 divisors, whose sum is σ = 109265571717120. Its totient is φ = 6191736422400.

The previous prime is 26693500078019. The next prime is 26693500078121. The reversal of 26693500078080 is 8087000539662.

It is a happy number.

26693500078080 is a `hidden beast` number, since 2 + 6 + 69 + 3 + 500 + 0 + 78 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 138308290464 + ... + 138308290656.

It is an arithmetic number, because the mean of its divisors is an integer number (47424293280).

Almost surely, 2^{26693500078080} is an apocalyptic number.

26693500078080 is a gapful number since it is divisible by the number (20) 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 26693500078080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54632785858560).

26693500078080 is an abundant number, since it is smaller than the sum of its proper divisors (82572071639040).

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

26693500078080 is a wasteful number, since it uses less digits than its factorization.

26693500078080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 26693500078080 in words is "twenty-six trillion, six hundred ninety-three billion, five hundred million, seventy-eight thousand, eighty".