21234628644310 has 32 divisors (see below), whose sum is σ = 38236397472000. Its totient is φ = 8490726126432.

The previous prime is 21234628644287. The next prime is 21234628644377. The reversal of 21234628644310 is 1344682643212.

It is a super-2 number, since 2×21234628644310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 737119927 + ... + 737148733.

It is an arithmetic number, because the mean of its divisors is an integer number (1194887421000).

Almost surely, 2^{21234628644310} is an apocalyptic number.

21234628644310 is a deficient number, since it is larger than the sum of its proper divisors (17001768827690).

21234628644310 is a wasteful number, since it uses less digits than its factorization.

21234628644310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53380.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 21234628644310 in words is "twenty-one trillion, two hundred thirty-four billion, six hundred twenty-eight million, six hundred forty-four thousand, three hundred ten".