21489828168310 has 16 divisors (see below), whose sum is σ = 38681998867296. Its totient is φ = 8595862786368.

The previous prime is 21489828168271. The next prime is 21489828168313. The reversal of 21489828168310 is 1386182898412.

It is a happy number.

It is a super-2 number, since 2×21489828168310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21489828168313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7232322 + ... + 9761461.

It is an arithmetic number, because the mean of its divisors is an integer number (2417624929206).

Almost surely, 2^{21489828168310} is an apocalyptic number.

21489828168310 is a deficient number, since it is larger than the sum of its proper divisors (17192170698986).

21489828168310 is a wasteful number, since it uses less digits than its factorization.

21489828168310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17120247.

The product of its (nonzero) digits is 10616832, while the sum is 61.

The spelling of 21489828168310 in words is "twenty-one trillion, four hundred eighty-nine billion, eight hundred twenty-eight million, one hundred sixty-eight thousand, three hundred ten".