21746543360123 has 8 divisors (see below), whose sum is σ = 21758641273200. Its totient is φ = 21734445932640.

The previous prime is 21746543360111. The next prime is 21746543360233. The reversal of 21746543360123 is 32106334564712.

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 21746543360123 - 2¹⁴ = 21746543343739 is a prime.

It is a super-2 number, since 2×21746543360123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21746543365123) 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, 124906793 + ... + 125080773.

It is an arithmetic number, because the mean of its divisors is an integer number (2719830159150).

Almost surely, 2^{21746543360123} is an apocalyptic number.

21746543360123 is a deficient number, since it is larger than the sum of its proper divisors (12097913077).

21746543360123 is a wasteful number, since it uses less digits than its factorization.

21746543360123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242797.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 21746543360123 in words is "twenty-one trillion, seven hundred forty-six billion, five hundred forty-three million, three hundred sixty thousand, one hundred twenty-three".