26321081869 has 8 divisors (see below), whose sum is σ = 26936331840. Its totient is φ = 25705974336.

The previous prime is 26321081863. The next prime is 26321081879. The reversal of 26321081869 is 96818012362.

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 26321081869 - 2⁷ = 26321081741 is a prime.

It is a super-2 number, since 2×26321081869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26321081863) 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, 399717 + ... + 460885.

It is an arithmetic number, because the mean of its divisors is an integer number (3367041480).

Almost surely, 2^26321081869 is an apocalyptic number.

It is an amenable number.

26321081869 is a deficient number, since it is larger than the sum of its proper divisors (615249971).

26321081869 is a wasteful number, since it uses less digits than its factorization.

26321081869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71219.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 26321081869 in words is "twenty-six billion, three hundred twenty-one million, eighty-one thousand, eight hundred sixty-nine".