26450511161 has 4 divisors (see below), whose sum is σ = 26462519952. Its totient is φ = 26438502372.

The previous prime is 26450511121. The next prime is 26450511167. The reversal of 26450511161 is 16111505462.

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 26450511161 - 2²² = 26446316857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26450511167) 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, 6001091 + ... + 6005496.

It is an arithmetic number, because the mean of its divisors is an integer number (6615629988).

Almost surely, 2^26450511161 is an apocalyptic number.

It is an amenable number.

26450511161 is a deficient number, since it is larger than the sum of its proper divisors (12008791).

26450511161 is a wasteful number, since it uses less digits than its factorization.

26450511161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008790.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 26450511161 in words is "twenty-six billion, four hundred fifty million, five hundred eleven thousand, one hundred sixty-one".