21444140356414 has 4 divisors (see below), whose sum is σ = 32166210534624. Its totient is φ = 10722070178206.

The previous prime is 21444140356409. The next prime is 21444140356559. The reversal of 21444140356414 is 41465304144412.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×21444140356414³ (a number of 41 digits) contains 333 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 as a sum of consecutive naturals, namely, 5361035089102 + ... + 5361035089105.

It is an arithmetic number, because the mean of its divisors is an integer number (8041552633656).

Almost surely, 2^{21444140356414} is an apocalyptic number.

21444140356414 is a deficient number, since it is larger than the sum of its proper divisors (10722070178210).

21444140356414 is a wasteful number, since it uses less digits than its factorization.

21444140356414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10722070178209.

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 21444140356414 in words is "twenty-one trillion, four hundred forty-four billion, one hundred forty million, three hundred fifty-six thousand, four hundred fourteen".