26346066641 has 8 divisors (see below), whose sum is σ = 26884305000. Its totient is φ = 25809352192.

The previous prime is 26346066629. The next prime is 26346066667. The reversal of 26346066641 is 14666064362.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3478225 + 26342588416 = 1865^2 + 162304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26346066641 - 2¹⁸ = 26345804497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26346066592 and 26346066601.

It is not an unprimeable number, because it can be changed into a prime (26346066601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346016 + ... + 415233.

It is an arithmetic number, because the mean of its divisors is an integer number (3360538125).

Almost surely, 2^26346066641 is an apocalyptic number.

It is an amenable number.

26346066641 is a deficient number, since it is larger than the sum of its proper divisors (538238359).

26346066641 is an equidigital number, since it uses as much as digits as its factorization.

26346066641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761955.

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 26346066641 in words is "twenty-six billion, three hundred forty-six million, sixty-six thousand, six hundred forty-one".