26968208401 has 4 divisors (see below), whose sum is σ = 26979537204. Its totient is φ = 26956879600.

The previous prime is 26968208341. The next prime is 26968208411. The reversal of 26968208401 is 10480286962.

It is a Cunningham number, because it is equal to 164220²+1.

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 22657600 + 26945550801 = 4760^2 + 164151^2 .

It is a cyclic number.

It is not a de Polignac number, because 26968208401 - 2¹³ = 26968200209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26968208411) 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, 5660830 + ... + 5665591.

It is an arithmetic number, because the mean of its divisors is an integer number (6744884301).

Almost surely, 2^26968208401 is an apocalyptic number.

It is an amenable number.

26968208401 is a deficient number, since it is larger than the sum of its proper divisors (11328803).

26968208401 is a wasteful number, since it uses less digits than its factorization.

26968208401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328802.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 26968208401 in words is "twenty-six billion, nine hundred sixty-eight million, two hundred eight thousand, four hundred one".