26454371868 has 36 divisors (see below), whose sum is σ = 66875707080. Its totient is φ = 8817473376.

The previous prime is 26454371849. The next prime is 26454371869. The reversal of 26454371868 is 86817345462.

It is a happy number.

26454371868 is a `hidden beast` number, since 2 + 6 + 454 + 3 + 7 + 186 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26454371869) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 962298 + ... + 989406.

It is an arithmetic number, because the mean of its divisors is an integer number (1857658530).

Almost surely, 2^26454371868 is an apocalyptic number.

It is an amenable number.

26454371868 is an abundant number, since it is smaller than the sum of its proper divisors (40421335212).

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

26454371868 is a wasteful number, since it uses less digits than its factorization.

26454371868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54226 (or 54221 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 26454371868 in words is "twenty-six billion, four hundred fifty-four million, three hundred seventy-one thousand, eight hundred sixty-eight".