26328456961 has 4 divisors (see below), whose sum is σ = 26584073152. Its totient is φ = 26072840772.

The previous prime is 26328456949. The next prime is 26328456991. The reversal of 26328456961 is 16965482362.

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 not a de Polignac number, because 26328456961 - 2¹⁵ = 26328424193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26328456899 and 26328456908.

It is not an unprimeable number, because it can be changed into a prime (26328456941) 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, 127807941 + ... + 127808146.

It is an arithmetic number, because the mean of its divisors is an integer number (6646018288).

Almost surely, 2^26328456961 is an apocalyptic number.

It is an amenable number.

26328456961 is a deficient number, since it is larger than the sum of its proper divisors (255616191).

26328456961 is a wasteful number, since it uses less digits than its factorization.

26328456961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255616190.

The product of its digits is 3732480, while the sum is 52.

The spelling of 26328456961 in words is "twenty-six billion, three hundred twenty-eight million, four hundred fifty-six thousand, nine hundred sixty-one".