21834133167 has 16 divisors (see below), whose sum is σ = 36295702272. Its totient is φ = 11342406720.

The previous prime is 21834133117. The next prime is 21834133201. The reversal of 21834133167 is 76133143812.

It is not a de Polignac number, because 21834133167 - 2⁸ = 21834132911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21834133117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47259798 + ... + 47260259.

It is an arithmetic number, because the mean of its divisors is an integer number (2268481392).

Almost surely, 2^21834133167 is an apocalyptic number.

21834133167 is a deficient number, since it is larger than the sum of its proper divisors (14461569105).

21834133167 is a wasteful number, since it uses less digits than its factorization.

21834133167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94520078.

The product of its digits is 72576, while the sum is 39.

Adding to 21834133167 its reverse (76133143812), we get a palindrome (97967276979).

The spelling of 21834133167 in words is "twenty-one billion, eight hundred thirty-four million, one hundred thirty-three thousand, one hundred sixty-seven".