26766178245648 has 50 divisors (see below), whose sum is σ = 77469085342814. Its totient is φ = 8922059414784.

The previous prime is 26766178245637. The next prime is 26766178245649. The reversal of 26766178245648 is 84654287166762.

26766178245648 is a `hidden beast` number, since 2 + 6 + 7 + 6 + 61 + 78 + 2 + 456 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24563839140864 + 2202339104784 = 4956192^2 + 1484028^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (26766178245649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10326456361 + ... + 10326458952.

Almost surely, 2^{26766178245648} is an apocalyptic number.

It is an amenable number.

26766178245648 is an abundant number, since it is smaller than the sum of its proper divisors (50702907097166).

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

26766178245648 is a wasteful number, since it uses less digits than its factorization.

26766178245648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20652915333 (or 20652915318 counting only the distinct ones).

The product of its digits is 1300561920, while the sum is 72.

The spelling of 26766178245648 in words is "twenty-six trillion, seven hundred sixty-six billion, one hundred seventy-eight million, two hundred forty-five thousand, six hundred forty-eight".