26271132761 has 4 divisors (see below), whose sum is σ = 26273454900. Its totient is φ = 26268810624.

The previous prime is 26271132739. The next prime is 26271132773. The reversal of 26271132761 is 16723117262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15871212361 + 10399920400 = 125981^2 + 101980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26271132761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26271132721) 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, 1144016 + ... + 1166753.

It is an arithmetic number, because the mean of its divisors is an integer number (6568363725).

Almost surely, 2^26271132761 is an apocalyptic number.

It is an amenable number.

26271132761 is a deficient number, since it is larger than the sum of its proper divisors (2322139).

26271132761 is a wasteful number, since it uses less digits than its factorization.

26271132761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322138.

The product of its digits is 42336, while the sum is 38.

The spelling of 26271132761 in words is "twenty-six billion, two hundred seventy-one million, one hundred thirty-two thousand, seven hundred sixty-one".