26516177461 has 4 divisors (see below), whose sum is σ = 26570625952. Its totient is φ = 26461728972.

The previous prime is 26516177437. The next prime is 26516177497. The reversal of 26516177461 is 16477161562.

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 26516177461 - 2¹⁹ = 26515653173 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 (26516178461) 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 3 ways as a sum of consecutive naturals, for example, 27223515 + ... + 27224488.

It is an arithmetic number, because the mean of its divisors is an integer number (6642656488).

Almost surely, 2^26516177461 is an apocalyptic number.

It is an amenable number.

26516177461 is a deficient number, since it is larger than the sum of its proper divisors (54448491).

26516177461 is an equidigital number, since it uses as much as digits as its factorization.

26516177461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54448490.

The product of its digits is 423360, while the sum is 46.

The spelling of 26516177461 in words is "twenty-six billion, five hundred sixteen million, one hundred seventy-seven thousand, four hundred sixty-one".