21514455444045 has 8 divisors (see below), whose sum is σ = 34423128710496. Its totient is φ = 11474376236816.

The previous prime is 21514455444023. The next prime is 21514455444077. The reversal of 21514455444045 is 54044455441512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21514455444045 - 2¹⁵ = 21514455411277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21514455443985 and 21514455444003.

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 7 ways as a sum of consecutive naturals, for example, 717148514787 + ... + 717148514816.

It is an arithmetic number, because the mean of its divisors is an integer number (4302891088812).

Almost surely, 2^{21514455444045} is an apocalyptic number.

It is an amenable number.

21514455444045 is a deficient number, since it is larger than the sum of its proper divisors (12908673266451).

21514455444045 is a wasteful number, since it uses less digits than its factorization.

21514455444045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434297029611.

The product of its (nonzero) digits is 5120000, while the sum is 48.

The spelling of 21514455444045 in words is "twenty-one trillion, five hundred fourteen billion, four hundred fifty-five million, four hundred forty-four thousand, forty-five".