26442640401 has 8 divisors (see below), whose sum is σ = 35270728320. Its totient is φ = 17621489712.

The previous prime is 26442640387. The next prime is 26442640403. The reversal of 26442640401 is 10404624462.

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

It is not a de Polignac number, because 26442640401 - 2¹¹ = 26442638353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26442640403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725406 + ... + 1740663.

It is an arithmetic number, because the mean of its divisors is an integer number (4408841040).

Almost surely, 2^26442640401 is an apocalyptic number.

It is an amenable number.

26442640401 is a deficient number, since it is larger than the sum of its proper divisors (8828087919).

26442640401 is a wasteful number, since it uses less digits than its factorization.

26442640401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468615.

The product of its (nonzero) digits is 36864, while the sum is 33.

The spelling of 26442640401 in words is "twenty-six billion, four hundred forty-two million, six hundred forty thousand, four hundred one".