26730140263 has 4 divisors (see below), whose sum is σ = 26731670760. Its totient is φ = 26728609768.

The previous prime is 26730140233. The next prime is 26730140293. The reversal of 26730140263 is 36204103762.

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

It is an interprime number because it is at equal distance from previous prime (26730140233) and next prime (26730140293).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26730140263 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 (26730140233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738745 + ... + 774082.

It is an arithmetic number, because the mean of its divisors is an integer number (6682917690).

Almost surely, 2^26730140263 is an apocalyptic number.

26730140263 is a deficient number, since it is larger than the sum of its proper divisors (1530497).

26730140263 is a wasteful number, since it uses less digits than its factorization.

26730140263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530496.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 26730140263 in words is "twenty-six billion, seven hundred thirty million, one hundred forty thousand, two hundred sixty-three".