21374443203207 has 8 divisors (see below), whose sum is σ = 28505424958320. Its totient is φ = 14246545125120.

The previous prime is 21374443203101. The next prime is 21374443203263. The reversal of 21374443203207 is 70230234447312.

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

It is not a de Polignac number, because 21374443203207 - 2¹⁰ = 21374443202183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21374443203307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770903082 + ... + 770930807.

It is an arithmetic number, because the mean of its divisors is an integer number (3563178119790).

Almost surely, 2^{21374443203207} is an apocalyptic number.

21374443203207 is a deficient number, since it is larger than the sum of its proper divisors (7130981755113).

21374443203207 is a wasteful number, since it uses less digits than its factorization.

21374443203207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541838513.

The product of its (nonzero) digits is 677376, while the sum is 42.

The spelling of 21374443203207 in words is "twenty-one trillion, three hundred seventy-four billion, four hundred forty-three million, two hundred three thousand, two hundred seven".