21735836210 has 48 divisors (see below), whose sum is σ = 43092000000. Its totient is φ = 7887881760.

The previous prime is 21735836203. The next prime is 21735836219. The reversal of 21735836210 is 1263853712.

It is not an unprimeable number, because it can be changed into a prime (21735836219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585791 + ... + 621789.

It is an arithmetic number, because the mean of its divisors is an integer number (897750000).

Almost surely, 2^21735836210 is an apocalyptic number.

21735836210 is a deficient number, since it is larger than the sum of its proper divisors (21356163790).

21735836210 is a wasteful number, since it uses less digits than its factorization.

21735836210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36527 (or 36516 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 21735836210 in words is "twenty-one billion, seven hundred thirty-five million, eight hundred thirty-six thousand, two hundred ten".