21733098871 has 16 divisors (see below), whose sum is σ = 25038034560. Its totient is φ = 18656477280.

The previous prime is 21733098869. The next prime is 21733098913. The reversal of 21733098871 is 17889033712.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21733098871 - 2¹ = 21733098869 is a prime.

It is a super-2 number, since 2×21733098871² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21733098671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105196 + ... + 233521.

It is an arithmetic number, because the mean of its divisors is an integer number (1564877160).

Almost surely, 2^21733098871 is an apocalyptic number.

21733098871 is a deficient number, since it is larger than the sum of its proper divisors (3304935689).

21733098871 is a wasteful number, since it uses less digits than its factorization.

21733098871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339054.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 21733098871 in words is "twenty-one billion, seven hundred thirty-three million, ninety-eight thousand, eight hundred seventy-one".