21743287243307 has 8 divisors (see below), whose sum is σ = 25014037170432. Its totient is φ = 18513678825000.

The previous prime is 21743287243303. The next prime is 21743287243313. The reversal of 21743287243307 is 70334278234712.

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 21743287243307 - 2² = 21743287243303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21743287243303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10285376069 + ... + 10285378182.

It is an arithmetic number, because the mean of its divisors is an integer number (3126754646304).

Almost surely, 2^{21743287243307} is an apocalyptic number.

21743287243307 is a deficient number, since it is larger than the sum of its proper divisors (3270749927125).

21743287243307 is a wasteful number, since it uses less digits than its factorization.

21743287243307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20570754409.

The product of its (nonzero) digits is 9483264, while the sum is 53.

The spelling of 21743287243307 in words is "twenty-one trillion, seven hundred forty-three billion, two hundred eighty-seven million, two hundred forty-three thousand, three hundred seven".