21369226089 has 8 divisors (see below), whose sum is σ = 28493098560. Its totient is φ = 14245752176.

The previous prime is 21369226079. The next prime is 21369226097. The reversal of 21369226089 is 98062296312.

It is a happy number.

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 21369226089 - 2⁵ = 21369226057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21369226079) 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, 63739 + ... + 216335.

It is an arithmetic number, because the mean of its divisors is an integer number (3561637320).

Almost surely, 2^21369226089 is an apocalyptic number.

It is an amenable number.

21369226089 is a deficient number, since it is larger than the sum of its proper divisors (7123872471).

21369226089 is a wasteful number, since it uses less digits than its factorization.

21369226089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199279.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 21369226089 in words is "twenty-one billion, three hundred sixty-nine million, two hundred twenty-six thousand, eighty-nine".