26980861753 has 8 divisors (see below), whose sum is σ = 27103879880. Its totient is φ = 26857889280.

The previous prime is 26980861711. The next prime is 26980861757. The reversal of 26980861753 is 35716808962.

It can be written as a sum of positive squares in 4 ways, for example, as 8268810489 + 18712051264 = 90933^2 + 136792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26980861753 - 2³³ = 18390927161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26980861694 and 26980861703.

It is not an unprimeable number, because it can be changed into a prime (26980861757) 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 7 ways as a sum of consecutive naturals, for example, 1861651 + ... + 1876087.

It is an arithmetic number, because the mean of its divisors is an integer number (3387984985).

Almost surely, 2^26980861753 is an apocalyptic number.

It is an amenable number.

26980861753 is a deficient number, since it is larger than the sum of its proper divisors (123018127).

26980861753 is a wasteful number, since it uses less digits than its factorization.

26980861753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22827.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 26980861753 in words is "twenty-six billion, nine hundred eighty million, eight hundred sixty-one thousand, seven hundred fifty-three".