21470740713643 has 8 divisors (see below), whose sum is σ = 23122374429168. Its totient is φ = 19819112466144.

The previous prime is 21470740713599. The next prime is 21470740713677. The reversal of 21470740713643 is 34631704707412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21470740713643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21470740743643) 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, 10797405 + ... + 12630337.

It is an arithmetic number, because the mean of its divisors is an integer number (2890296803646).

Almost surely, 2^{21470740713643} is an apocalyptic number.

21470740713643 is a deficient number, since it is larger than the sum of its proper divisors (1651633715525).

21470740713643 is a wasteful number, since it uses less digits than its factorization.

21470740713643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734013.

The product of its (nonzero) digits is 2370816, while the sum is 49.

The spelling of 21470740713643 in words is "twenty-one trillion, four hundred seventy billion, seven hundred forty million, seven hundred thirteen thousand, six hundred forty-three".