26221050433 has 4 divisors (see below), whose sum is σ = 27361096128. Its totient is φ = 25081004740.

The previous prime is 26221050413. The next prime is 26221050467. The reversal of 26221050433 is 33405012262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26221050433 - 2¹³ = 26221042241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26221050403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570022813 + ... + 570022858.

It is an arithmetic number, because the mean of its divisors is an integer number (6840274032).

Almost surely, 2^26221050433 is an apocalyptic number.

26221050433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

26221050433 is a deficient number, since it is larger than the sum of its proper divisors (1140045695).

26221050433 is a wasteful number, since it uses less digits than its factorization.

26221050433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140045694.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 26221050433 its reverse (33405012262), we get a palindrome (59626062695).

The spelling of 26221050433 in words is "twenty-six billion, two hundred twenty-one million, fifty thousand, four hundred thirty-three".