21356143734710 has 32 divisors (see below), whose sum is σ = 39682348941312. Its totient is φ = 8266632668640.

The previous prime is 21356143734701. The next prime is 21356143734721. The reversal of 21356143734710 is 1743734165312.

It is a super-3 number, since 3×21356143734710³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8865227 + ... + 11013833.

It is an arithmetic number, because the mean of its divisors is an integer number (1240073404416).

Almost surely, 2^{21356143734710} is an apocalyptic number.

21356143734710 is a deficient number, since it is larger than the sum of its proper divisors (18326205206602).

21356143734710 is a wasteful number, since it uses less digits than its factorization.

21356143734710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180708.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 21356143734710 in words is "twenty-one trillion, three hundred fifty-six billion, one hundred forty-three million, seven hundred thirty-four thousand, seven hundred ten".