26771752013 has 4 divisors (see below), whose sum is σ = 26910465948. Its totient is φ = 26633038080.

The previous prime is 26771752003. The next prime is 26771752043. The reversal of 26771752013 is 31025717762.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8431279684 + 18340472329 = 91822^2 + 135427^2 .

It is a cyclic number.

It is not a de Polignac number, because 26771752013 - 2⁸ = 26771751757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26771752003) 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 3 ways as a sum of consecutive naturals, for example, 69356678 + ... + 69357063.

It is an arithmetic number, because the mean of its divisors is an integer number (6727616487).

Almost surely, 2^26771752013 is an apocalyptic number.

It is an amenable number.

26771752013 is a deficient number, since it is larger than the sum of its proper divisors (138713935).

26771752013 is a wasteful number, since it uses less digits than its factorization.

26771752013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138713934.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 26771752013 in words is "twenty-six billion, seven hundred seventy-one million, seven hundred fifty-two thousand, thirteen".