21746355314713 has 16 divisors (see below), whose sum is σ = 22544821615680. Its totient is φ = 20951161108416.

The previous prime is 21746355314707. The next prime is 21746355314737. The reversal of 21746355314713 is 31741355364712.

It is a cyclic number.

It is not a de Polignac number, because 21746355314713 - 2²⁹ = 21745818443801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21746355314743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37211731 + ... + 37791607.

It is an arithmetic number, because the mean of its divisors is an integer number (1409051350980).

Almost surely, 2^{21746355314713} is an apocalyptic number.

It is an amenable number.

21746355314713 is a deficient number, since it is larger than the sum of its proper divisors (798466300967).

21746355314713 is a wasteful number, since it uses less digits than its factorization.

21746355314713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582696.

The product of its digits is 6350400, while the sum is 52.

The spelling of 21746355314713 in words is "twenty-one trillion, seven hundred forty-six billion, three hundred fifty-five million, three hundred fourteen thousand, seven hundred thirteen".