26326087481 has 4 divisors (see below), whose sum is σ = 26328574464. Its totient is φ = 26323600500.

The previous prime is 26326087471. The next prime is 26326087483. The reversal of 26326087481 is 18478062362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26326087481 is a prime.

It is a super-2 number, since 2×26326087481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26326087483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227545 + ... + 1248806.

It is an arithmetic number, because the mean of its divisors is an integer number (6582143616).

Almost surely, 2^26326087481 is an apocalyptic number.

It is an amenable number.

26326087481 is a deficient number, since it is larger than the sum of its proper divisors (2486983).

26326087481 is a wasteful number, since it uses less digits than its factorization.

26326087481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486982.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 26326087481 in words is "twenty-six billion, three hundred twenty-six million, eighty-seven thousand, four hundred eighty-one".