21470014044446 has 16 divisors (see below), whose sum is σ = 35160655582080. Its totient is φ = 9751345813080.

The previous prime is 21470014044419. The next prime is 21470014044449. The reversal of 21470014044446 is 64444041007412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21470014044449) 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, 387545666 + ... + 387601061.

It is an arithmetic number, because the mean of its divisors is an integer number (2197540973880).

Almost surely, 2^{21470014044446} is an apocalyptic number.

21470014044446 is a deficient number, since it is larger than the sum of its proper divisors (13690641537634).

21470014044446 is a wasteful number, since it uses less digits than its factorization.

21470014044446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775147999.

The product of its (nonzero) digits is 344064, while the sum is 41.

The spelling of 21470014044446 in words is "twenty-one trillion, four hundred seventy billion, fourteen million, forty-four thousand, four hundred forty-six".