26047639717 has 16 divisors (see below), whose sum is σ = 31124606400. Its totient is φ = 21518237440.

The previous prime is 26047639697. The next prime is 26047639727. The reversal of 26047639717 is 71793674062.

It is a cyclic number.

It is not a de Polignac number, because 26047639717 - 2¹¹ = 26047637669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26047639727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2396167 + ... + 2407012.

It is an arithmetic number, because the mean of its divisors is an integer number (1945287900).

Almost surely, 2^26047639717 is an apocalyptic number.

It is an amenable number.

26047639717 is a deficient number, since it is larger than the sum of its proper divisors (5076966683).

26047639717 is a wasteful number, since it uses less digits than its factorization.

26047639717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4803236.

The product of its (nonzero) digits is 2667168, while the sum is 52.

The spelling of 26047639717 in words is "twenty-six billion, forty-seven million, six hundred thirty-nine thousand, seven hundred seventeen".