21672303040435 has 8 divisors (see below), whose sum is σ = 26006838096096. Its totient is φ = 17337792800640.

The previous prime is 21672303040397. The next prime is 21672303040523. The reversal of 21672303040435 is 53404030327612.

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

It is not a de Polignac number, because 21672303040435 - 2¹⁹ = 21672302516147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4225279 + ... + 7822888.

It is an arithmetic number, because the mean of its divisors is an integer number (3250854762012).

Almost surely, 2^{21672303040435} is an apocalyptic number.

21672303040435 is a deficient number, since it is larger than the sum of its proper divisors (4334535055661).

21672303040435 is a wasteful number, since it uses less digits than its factorization.

21672303040435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12407933.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 21672303040435 in words is "twenty-one trillion, six hundred seventy-two billion, three hundred three million, forty thousand, four hundred thirty-five".