26642041361 has 4 divisors (see below), whose sum is σ = 28691429172. Its totient is φ = 24592653552.

The previous prime is 26642041337. The next prime is 26642041369. The reversal of 26642041361 is 16314024662.

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 16635840400 + 10006200961 = 128980^2 + 100031^2 .

It is a cyclic number.

It is not a de Polignac number, because 26642041361 - 2¹⁴ = 26642024977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26642041369) 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, 1024693886 + ... + 1024693911.

It is an arithmetic number, because the mean of its divisors is an integer number (7172857293).

Almost surely, 2^26642041361 is an apocalyptic number.

It is an amenable number.

26642041361 is a deficient number, since it is larger than the sum of its proper divisors (2049387811).

26642041361 is a wasteful number, since it uses less digits than its factorization.

26642041361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049387810.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 26642041361 in words is "twenty-six billion, six hundred forty-two million, forty-one thousand, three hundred sixty-one".