26801774221 has 8 divisors (see below), whose sum is σ = 26873213184. Its totient is φ = 26730378960.

The previous prime is 26801774183. The next prime is 26801774257. The reversal of 26801774221 is 12247710862.

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 26801774221 - 2³³ = 18211839629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26801774261) 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, 1483575 + ... + 1501531.

It is an arithmetic number, because the mean of its divisors is an integer number (3359151648).

Almost surely, 2^26801774221 is an apocalyptic number.

It is an amenable number.

26801774221 is a deficient number, since it is larger than the sum of its proper divisors (71438963).

26801774221 is a wasteful number, since it uses less digits than its factorization.

26801774221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21851.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 26801774221 in words is "twenty-six billion, eight hundred one million, seven hundred seventy-four thousand, two hundred twenty-one".