26463075985 has 8 divisors (see below), whose sum is σ = 31784127336. Its totient is φ = 21151503360.

The previous prime is 26463075971. The next prime is 26463076007. The reversal of 26463075985 is 58957036462.

It can be written as a sum of positive squares in 4 ways, for example, as 161696656 + 26301379329 = 12716^2 + 162177^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-26463075985 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 2363536 + ... + 2374705.

It is an arithmetic number, because the mean of its divisors is an integer number (3973015917).

Almost surely, 2^26463075985 is an apocalyptic number.

It is an amenable number.

26463075985 is a deficient number, since it is larger than the sum of its proper divisors (5321051351).

26463075985 is a wasteful number, since it uses less digits than its factorization.

26463075985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739363.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 26463075985 in words is "twenty-six billion, four hundred sixty-three million, seventy-five thousand, nine hundred eighty-five".